Home / 12,530,280.74-18,795,437.19-3,432,458.30

Finding the Fourth Proportional to 12,530,280.74, 18,795,437.19 and 3,432,458.30

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Solution

The fourth proportional to 12,530,280.74, 18,795,437.19 and 3,432,458.30 is: 5,148,691.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,530,280.74 : 18,795,437.19 = 3,432,458.30 : x
  2. Step 2: Convert to fraction form
    12,530,280.74/18,795,437.19 = 3,432,458.30/x
  3. Step 3: Cross multiply
    12,530,280.74x = 18,795,437.19 × 3,432,458.30
  4. Step 4: Simplify right side
    12,530,280.74x = 64,514,554,290,966.99
  5. Step 5: Solve for x
    x = 64,514,554,290,966.99/12,530,280.74
  6. Step 6: Final answer
    x = 5,148,691.85

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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.