Home / 83,016,136.20-124,188,281.10-72,938,440.20

Finding the Fourth Proportional to 83,016,136.20, 124,188,281.10 and 72,938,440.20

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Solution

The fourth proportional to 83,016,136.20, 124,188,281.10 and 72,938,440.20 is: 109,112,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,016,136.20 : 124,188,281.10 = 72,938,440.20 : x
  2. Step 2: Convert to fraction form
    83,016,136.20/124,188,281.10 = 72,938,440.20/x
  3. Step 3: Cross multiply
    83,016,136.20x = 124,188,281.10 × 72,938,440.20
  4. Step 4: Simplify right side
    83,016,136.20x = 9,058,099,514,553,140
  5. Step 5: Solve for x
    x = 9,058,099,514,553,140/83,016,136.20
  6. Step 6: Final answer
    x = 109,112,516.30

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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.