Home / 20,702,133.74-28,569,061.68-12,005,469.92

Finding the Fourth Proportional to 20,702,133.74, 28,569,061.68 and 12,005,469.92

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Solution

The fourth proportional to 20,702,133.74, 28,569,061.68 and 12,005,469.92 is: 16,567,616.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,133.74 : 28,569,061.68 = 12,005,469.92 : x
  2. Step 2: Convert to fraction form
    20,702,133.74/28,569,061.68 = 12,005,469.92/x
  3. Step 3: Cross multiply
    20,702,133.74x = 28,569,061.68 × 12,005,469.92
  4. Step 4: Simplify right side
    20,702,133.74x = 342,985,010,641,864.69
  5. Step 5: Solve for x
    x = 342,985,010,641,864.69/20,702,133.74
  6. Step 6: Final answer
    x = 16,567,616.41

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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.