Home / 99,454,049.20-137,228,368.50-55,399,951.72

Finding the Fourth Proportional to 99,454,049.20, 137,228,368.50 and 55,399,951.72

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Solution

The fourth proportional to 99,454,049.20, 137,228,368.50 and 55,399,951.72 is: 76,441,784.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,454,049.20 : 137,228,368.50 = 55,399,951.72 : x
  2. Step 2: Convert to fraction form
    99,454,049.20/137,228,368.50 = 55,399,951.72/x
  3. Step 3: Cross multiply
    99,454,049.20x = 137,228,368.50 × 55,399,951.72
  4. Step 4: Simplify right side
    99,454,049.20x = 7,602,444,989,514,369
  5. Step 5: Solve for x
    x = 7,602,444,989,514,369/99,454,049.20
  6. Step 6: Final answer
    x = 76,441,784.43

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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.