Home / 18,402,439.53-25,394,330.22-10,142,476.78

Finding the Fourth Proportional to 18,402,439.53, 25,394,330.22 and 10,142,476.78

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Solution

The fourth proportional to 18,402,439.53, 25,394,330.22 and 10,142,476.78 is: 13,996,046.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,402,439.53 : 25,394,330.22 = 10,142,476.78 : x
  2. Step 2: Convert to fraction form
    18,402,439.53/25,394,330.22 = 10,142,476.78/x
  3. Step 3: Cross multiply
    18,402,439.53x = 25,394,330.22 × 10,142,476.78
  4. Step 4: Simplify right side
    18,402,439.53x = 257,561,404,600,002.25
  5. Step 5: Solve for x
    x = 257,561,404,600,002.25/18,402,439.53
  6. Step 6: Final answer
    x = 13,996,046.78

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1.5x scale

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.