Home / 12,145,816.20-18,218,724.30-8,744,593.80

Finding the Fourth Proportional to 12,145,816.20, 18,218,724.30 and 8,744,593.80

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Solution

The fourth proportional to 12,145,816.20, 18,218,724.30 and 8,744,593.80 is: 13,116,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,816.20 : 18,218,724.30 = 8,744,593.80 : x
  2. Step 2: Convert to fraction form
    12,145,816.20/18,218,724.30 = 8,744,593.80/x
  3. Step 3: Cross multiply
    12,145,816.20x = 18,218,724.30 × 8,744,593.80
  4. Step 4: Simplify right side
    12,145,816.20x = 159,315,343,557,689.38
  5. Step 5: Solve for x
    x = 159,315,343,557,689.38/12,145,816.20
  6. Step 6: Final answer
    x = 13,116,890.70

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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.