Home / 1,217,282,881.19-1,679,708,657.44-681,463,886.85

Finding the Fourth Proportional to 1,217,282,881.19, 1,679,708,657.44 and 681,463,886.85

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Solution

The fourth proportional to 1,217,282,881.19, 1,679,708,657.44 and 681,463,886.85 is: 940,340,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,282,881.19 : 1,679,708,657.44 = 681,463,886.85 : x
  2. Step 2: Convert to fraction form
    1,217,282,881.19/1,679,708,657.44 = 681,463,886.85/x
  3. Step 3: Cross multiply
    1,217,282,881.19x = 1,679,708,657.44 × 681,463,886.85
  4. Step 4: Simplify right side
    1,217,282,881.19x = 1,144,660,790,462,851,712
  5. Step 5: Solve for x
    x = 1,144,660,790,462,851,712/1,217,282,881.19
  6. Step 6: Final answer
    x = 940,340,826.40

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Half scale
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Double scale
Find fourth proportional to 1,217,282,882.19, 1,679,708,658.81 and 681,463,887.85
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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.