Home / 13,861,419.60-19,129,476.48-7,981,927.12

Finding the Fourth Proportional to 13,861,419.60, 19,129,476.48 and 7,981,927.12

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Solution

The fourth proportional to 13,861,419.60, 19,129,476.48 and 7,981,927.12 is: 11,015,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861,419.60 : 19,129,476.48 = 7,981,927.12 : x
  2. Step 2: Convert to fraction form
    13,861,419.60/19,129,476.48 = 7,981,927.12/x
  3. Step 3: Cross multiply
    13,861,419.60x = 19,129,476.48 × 7,981,927.12
  4. Step 4: Simplify right side
    13,861,419.60x = 152,690,087,107,114.16
  5. Step 5: Solve for x
    x = 152,690,087,107,114.16/13,861,419.60
  6. Step 6: Final answer
    x = 11,015,472.55

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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.