Home / 72,489,957.90-108,734,936.85-40,241,330.70

Finding the Fourth Proportional to 72,489,957.90, 108,734,936.85 and 40,241,330.70

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Solution

The fourth proportional to 72,489,957.90, 108,734,936.85 and 40,241,330.70 is: 60,361,996.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,489,957.90 : 108,734,936.85 = 40,241,330.70 : x
  2. Step 2: Convert to fraction form
    72,489,957.90/108,734,936.85 = 40,241,330.70/x
  3. Step 3: Cross multiply
    72,489,957.90x = 108,734,936.85 × 40,241,330.70
  4. Step 4: Simplify right side
    72,489,957.90x = 4,375,638,552,424,466.50
  5. Step 5: Solve for x
    x = 4,375,638,552,424,466.50/72,489,957.90
  6. Step 6: Final answer
    x = 60,361,996.05

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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.