Home / 15,304,451.64-21,121,098.42-8,428,931.88

Finding the Fourth Proportional to 15,304,451.64, 21,121,098.42 and 8,428,931.88

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Solution

The fourth proportional to 15,304,451.64, 21,121,098.42 and 8,428,931.88 is: 11,632,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,304,451.64 : 21,121,098.42 = 8,428,931.88 : x
  2. Step 2: Convert to fraction form
    15,304,451.64/21,121,098.42 = 8,428,931.88/x
  3. Step 3: Cross multiply
    15,304,451.64x = 21,121,098.42 × 8,428,931.88
  4. Step 4: Simplify right side
    15,304,451.64x = 178,028,299,812,955.66
  5. Step 5: Solve for x
    x = 178,028,299,812,955.66/15,304,451.64
  6. Step 6: Final answer
    x = 11,632,452.05

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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.