Home / 99,391,029.66-148,892,592.79-77,428,573.53

Finding the Fourth Proportional to 99,391,029.66, 148,892,592.79 and 77,428,573.53

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Solution

The fourth proportional to 99,391,029.66, 148,892,592.79 and 77,428,573.53 is: 115,991,766.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,391,029.66 : 148,892,592.79 = 77,428,573.53 : x
  2. Step 2: Convert to fraction form
    99,391,029.66/148,892,592.79 = 77,428,573.53/x
  3. Step 3: Cross multiply
    99,391,029.66x = 148,892,592.79 × 77,428,573.53
  4. Step 4: Simplify right side
    99,391,029.66x = 11,528,541,068,912,862
  5. Step 5: Solve for x
    x = 11,528,541,068,912,862/99,391,029.66
  6. Step 6: Final answer
    x = 115,991,766.14

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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.