Home / 78,732,107.40-118,098,161.10-62,470,012.80

Finding the Fourth Proportional to 78,732,107.40, 118,098,161.10 and 62,470,012.80

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Solution

The fourth proportional to 78,732,107.40, 118,098,161.10 and 62,470,012.80 is: 93,705,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,107.40 : 118,098,161.10 = 62,470,012.80 : x
  2. Step 2: Convert to fraction form
    78,732,107.40/118,098,161.10 = 62,470,012.80/x
  3. Step 3: Cross multiply
    78,732,107.40x = 118,098,161.10 × 62,470,012.80
  4. Step 4: Simplify right side
    78,732,107.40x = 7,377,593,635,573,461
  5. Step 5: Solve for x
    x = 7,377,593,635,573,461/78,732,107.40
  6. Step 6: Final answer
    x = 93,705,019.20

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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.