Home / 1,217,282,642.49-1,679,708,328.76-681,463,648.14

Finding the Fourth Proportional to 1,217,282,642.49, 1,679,708,328.76 and 681,463,648.14

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Solution

The fourth proportional to 1,217,282,642.49, 1,679,708,328.76 and 681,463,648.14 is: 940,340,497.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,282,642.49 : 1,679,708,328.76 = 681,463,648.14 : x
  2. Step 2: Convert to fraction form
    1,217,282,642.49/1,679,708,328.76 = 681,463,648.14/x
  3. Step 3: Cross multiply
    1,217,282,642.49x = 1,679,708,328.76 × 681,463,648.14
  4. Step 4: Simplify right side
    1,217,282,642.49x = 1,144,660,165,526,228,352
  5. Step 5: Solve for x
    x = 1,144,660,165,526,228,352/1,217,282,642.49
  6. Step 6: Final answer
    x = 940,340,497.41

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,217,282,643.49, 1,679,708,330.14 and 681,463,649.14
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.