Home / 12,339,529.20-18,501,517.80-5,156,060.40

Finding the Fourth Proportional to 12,339,529.20, 18,501,517.80 and 5,156,060.40

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Solution

The fourth proportional to 12,339,529.20, 18,501,517.80 and 5,156,060.40 is: 7,730,841.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,339,529.20 : 18,501,517.80 = 5,156,060.40 : x
  2. Step 2: Convert to fraction form
    12,339,529.20/18,501,517.80 = 5,156,060.40/x
  3. Step 3: Cross multiply
    12,339,529.20x = 18,501,517.80 × 5,156,060.40
  4. Step 4: Simplify right side
    12,339,529.20x = 95,394,943,268,475.12
  5. Step 5: Solve for x
    x = 95,394,943,268,475.12/12,339,529.20
  6. Step 6: Final answer
    x = 7,730,841.41

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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.