Home / 87,021,718.17-120,092,242.55-47,864,522.43

Finding the Fourth Proportional to 87,021,718.17, 120,092,242.55 and 47,864,522.43

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Solution

The fourth proportional to 87,021,718.17, 120,092,242.55 and 47,864,522.43 is: 66,054,290.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,021,718.17 : 120,092,242.55 = 47,864,522.43 : x
  2. Step 2: Convert to fraction form
    87,021,718.17/120,092,242.55 = 47,864,522.43/x
  3. Step 3: Cross multiply
    87,021,718.17x = 120,092,242.55 × 47,864,522.43
  4. Step 4: Simplify right side
    87,021,718.17x = 5,748,157,836,964,153
  5. Step 5: Solve for x
    x = 5,748,157,836,964,153/87,021,718.17
  6. Step 6: Final answer
    x = 66,054,290.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.