Home / 1,217,282,641.75-1,679,708,327.73-681,463,647.41

Finding the Fourth Proportional to 1,217,282,641.75, 1,679,708,327.73 and 681,463,647.41

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Solution

The fourth proportional to 1,217,282,641.75, 1,679,708,327.73 and 681,463,647.41 is: 940,340,496.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,282,641.75 : 1,679,708,327.73 = 681,463,647.41 : x
  2. Step 2: Convert to fraction form
    1,217,282,641.75/1,679,708,327.73 = 681,463,647.41/x
  3. Step 3: Cross multiply
    1,217,282,641.75x = 1,679,708,327.73 × 681,463,647.41
  4. Step 4: Simplify right side
    1,217,282,641.75x = 1,144,660,163,599,837,440
  5. Step 5: Solve for x
    x = 1,144,660,163,599,837,440/1,217,282,641.75
  6. Step 6: Final answer
    x = 940,340,496.40

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Half scale
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Double scale
Find fourth proportional to 1,217,282,642.75, 1,679,708,329.11 and 681,463,648.41
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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.