Home / 23,131,025.76-31,921,003.20-12,817,920.96

Finding the Fourth Proportional to 23,131,025.76, 31,921,003.20 and 12,817,920.96

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Solution

The fourth proportional to 23,131,025.76, 31,921,003.20 and 12,817,920.96 is: 17,688,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,131,025.76 : 31,921,003.20 = 12,817,920.96 : x
  2. Step 2: Convert to fraction form
    23,131,025.76/31,921,003.20 = 12,817,920.96/x
  3. Step 3: Cross multiply
    23,131,025.76x = 31,921,003.20 × 12,817,920.96
  4. Step 4: Simplify right side
    23,131,025.76x = 409,160,895,981,507.06
  5. Step 5: Solve for x
    x = 409,160,895,981,507.06/23,131,025.76
  6. Step 6: Final answer
    x = 17,688,834.91

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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.