Home / 20,702,158.74-28,569,096.18-12,005,494.92

Finding the Fourth Proportional to 20,702,158.74, 28,569,096.18 and 12,005,494.92

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Solution

The fourth proportional to 20,702,158.74, 28,569,096.18 and 12,005,494.92 is: 16,567,650.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,702,158.74 : 28,569,096.18 = 12,005,494.92 : x
  2. Step 2: Convert to fraction form
    20,702,158.74/28,569,096.18 = 12,005,494.92/x
  3. Step 3: Cross multiply
    20,702,158.74x = 28,569,096.18 × 12,005,494.92
  4. Step 4: Simplify right side
    20,702,158.74x = 342,986,139,057,981.38
  5. Step 5: Solve for x
    x = 342,986,139,057,981.38/20,702,158.74
  6. Step 6: Final answer
    x = 16,567,650.91

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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.