Home / 12,086,368.38-18,117,428.04-5,613,987

Finding the Fourth Proportional to 12,086,368.38, 18,117,428.04 and 5,613,987

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Solution

The fourth proportional to 12,086,368.38, 18,117,428.04 and 5,613,987 is: 8,415,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086,368.38 : 18,117,428.04 = 5,613,987 : x
  2. Step 2: Convert to fraction form
    12,086,368.38/18,117,428.04 = 5,613,987/x
  3. Step 3: Cross multiply
    12,086,368.38x = 18,117,428.04 × 5,613,987
  4. Step 4: Simplify right side
    12,086,368.38x = 101,711,005,489,995.47
  5. Step 5: Solve for x
    x = 101,711,005,489,995.47/12,086,368.38
  6. Step 6: Final answer
    x = 8,415,348.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.