Home / 78,732,139.40-118,098,209.10-62,470,044.80

Finding the Fourth Proportional to 78,732,139.40, 118,098,209.10 and 62,470,044.80

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Solution

The fourth proportional to 78,732,139.40, 118,098,209.10 and 62,470,044.80 is: 93,705,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,139.40 : 118,098,209.10 = 62,470,044.80 : x
  2. Step 2: Convert to fraction form
    78,732,139.40/118,098,209.10 = 62,470,044.80/x
  3. Step 3: Cross multiply
    78,732,139.40x = 118,098,209.10 × 62,470,044.80
  4. Step 4: Simplify right side
    78,732,139.40x = 7,377,600,413,276,767
  5. Step 5: Solve for x
    x = 7,377,600,413,276,767/78,732,139.40
  6. Step 6: Final answer
    x = 93,705,067.20

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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.