Home / 87,066,428.65-120,148,069.20-47,374,122.76

Finding the Fourth Proportional to 87,066,428.65, 120,148,069.20 and 47,374,122.76

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Solution

The fourth proportional to 87,066,428.65, 120,148,069.20 and 47,374,122.76 is: 65,374,329.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,066,428.65 : 120,148,069.20 = 47,374,122.76 : x
  2. Step 2: Convert to fraction form
    87,066,428.65/120,148,069.20 = 47,374,122.76/x
  3. Step 3: Cross multiply
    87,066,428.65x = 120,148,069.20 × 47,374,122.76
  4. Step 4: Simplify right side
    87,066,428.65x = 5,691,909,379,657,775
  5. Step 5: Solve for x
    x = 5,691,909,379,657,775/87,066,428.65
  6. Step 6: Final answer
    x = 65,374,329.32

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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.