Home / 20,702,136.24-28,569,065.13-12,005,472.42

Finding the Fourth Proportional to 20,702,136.24, 28,569,065.13 and 12,005,472.42

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Solution

The fourth proportional to 20,702,136.24, 28,569,065.13 and 12,005,472.42 is: 16,567,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,136.24 : 28,569,065.13 = 12,005,472.42 : x
  2. Step 2: Convert to fraction form
    20,702,136.24/28,569,065.13 = 12,005,472.42/x
  3. Step 3: Cross multiply
    20,702,136.24x = 28,569,065.13 × 12,005,472.42
  4. Step 4: Simplify right side
    20,702,136.24x = 342,985,123,483,398.69
  5. Step 5: Solve for x
    x = 342,985,123,483,398.69/20,702,136.24
  6. Step 6: Final answer
    x = 16,567,619.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.