Home / 87,680,781.60-131,521,172.40-47,369,997.60

Finding the Fourth Proportional to 87,680,781.60, 131,521,172.40 and 47,369,997.60

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Solution

The fourth proportional to 87,680,781.60, 131,521,172.40 and 47,369,997.60 is: 71,054,996.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680,781.60 : 131,521,172.40 = 47,369,997.60 : x
  2. Step 2: Convert to fraction form
    87,680,781.60/131,521,172.40 = 47,369,997.60/x
  3. Step 3: Cross multiply
    87,680,781.60x = 131,521,172.40 × 47,369,997.60
  4. Step 4: Simplify right side
    87,680,781.60x = 6,230,157,620,937,187
  5. Step 5: Solve for x
    x = 6,230,157,620,937,187/87,680,781.60
  6. Step 6: Final answer
    x = 71,054,996.40

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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.