Home / 28,517,230.80-42,765,309.24-12,345,546.96

Finding the Fourth Proportional to 28,517,230.80, 42,765,309.24 and 12,345,546.96

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Solution

The fourth proportional to 28,517,230.80, 42,765,309.24 and 12,345,546.96 is: 18,513,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517,230.80 : 42,765,309.24 = 12,345,546.96 : x
  2. Step 2: Convert to fraction form
    28,517,230.80/42,765,309.24 = 12,345,546.96/x
  3. Step 3: Cross multiply
    28,517,230.80x = 42,765,309.24 × 12,345,546.96
  4. Step 4: Simplify right side
    28,517,230.80x = 527,961,133,481,342
  5. Step 5: Solve for x
    x = 527,961,133,481,342/28,517,230.80
  6. Step 6: Final answer
    x = 18,513,758.83

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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.