Home / 21,981,905.28-30,348,790.61-14,155,034.13

Finding the Fourth Proportional to 21,981,905.28, 30,348,790.61 and 14,155,034.13

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Solution

The fourth proportional to 21,981,905.28, 30,348,790.61 and 14,155,034.13 is: 19,542,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,981,905.28 : 30,348,790.61 = 14,155,034.13 : x
  2. Step 2: Convert to fraction form
    21,981,905.28/30,348,790.61 = 14,155,034.13/x
  3. Step 3: Cross multiply
    21,981,905.28x = 30,348,790.61 × 14,155,034.13
  4. Step 4: Simplify right side
    21,981,905.28x = 429,588,166,817,998.38
  5. Step 5: Solve for x
    x = 429,588,166,817,998.38/21,981,905.28
  6. Step 6: Final answer
    x = 19,542,808.57

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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.