Home / 78,227,711.70-117,341,567.55-57,820,377.30

Finding the Fourth Proportional to 78,227,711.70, 117,341,567.55 and 57,820,377.30

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Solution

The fourth proportional to 78,227,711.70, 117,341,567.55 and 57,820,377.30 is: 86,730,565.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,227,711.70 : 117,341,567.55 = 57,820,377.30 : x
  2. Step 2: Convert to fraction form
    78,227,711.70/117,341,567.55 = 57,820,377.30/x
  3. Step 3: Cross multiply
    78,227,711.70x = 117,341,567.55 × 57,820,377.30
  4. Step 4: Simplify right side
    78,227,711.70x = 6,784,733,708,714,436
  5. Step 5: Solve for x
    x = 6,784,733,708,714,436/78,227,711.70
  6. Step 6: Final answer
    x = 86,730,565.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.