Home / 408,368,712.30-612,553,068.45-135,704,049.90

Finding the Fourth Proportional to 408,368,712.30, 612,553,068.45 and 135,704,049.90

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Solution

The fourth proportional to 408,368,712.30, 612,553,068.45 and 135,704,049.90 is: 203,556,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,368,712.30 : 612,553,068.45 = 135,704,049.90 : x
  2. Step 2: Convert to fraction form
    408,368,712.30/612,553,068.45 = 135,704,049.90/x
  3. Step 3: Cross multiply
    408,368,712.30x = 612,553,068.45 × 135,704,049.90
  4. Step 4: Simplify right side
    408,368,712.30x = 83,125,932,167,336,928
  5. Step 5: Solve for x
    x = 83,125,932,167,336,928/408,368,712.30
  6. Step 6: Final answer
    x = 203,556,074.85

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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.