Home / 72,771,147.90-109,156,721.85-36,385,154.10

Finding the Fourth Proportional to 72,771,147.90, 109,156,721.85 and 36,385,154.10

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Solution

The fourth proportional to 72,771,147.90, 109,156,721.85 and 36,385,154.10 is: 54,577,731.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,771,147.90 : 109,156,721.85 = 36,385,154.10 : x
  2. Step 2: Convert to fraction form
    72,771,147.90/109,156,721.85 = 36,385,154.10/x
  3. Step 3: Cross multiply
    72,771,147.90x = 109,156,721.85 × 36,385,154.10
  4. Step 4: Simplify right side
    72,771,147.90x = 3,971,684,145,563,087
  5. Step 5: Solve for x
    x = 3,971,684,145,563,087/72,771,147.90
  6. Step 6: Final answer
    x = 54,577,731.15

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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.