Home / 15,757,789.74-21,745,788.39-8,788,918.83

Finding the Fourth Proportional to 15,757,789.74, 21,745,788.39 and 8,788,918.83

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Solution

The fourth proportional to 15,757,789.74, 21,745,788.39 and 8,788,918.83 is: 12,128,729.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,757,789.74 : 21,745,788.39 = 8,788,918.83 : x
  2. Step 2: Convert to fraction form
    15,757,789.74/21,745,788.39 = 8,788,918.83/x
  3. Step 3: Cross multiply
    15,757,789.74x = 21,745,788.39 × 8,788,918.83
  4. Step 4: Simplify right side
    15,757,789.74x = 191,121,969,054,066.38
  5. Step 5: Solve for x
    x = 191,121,969,054,066.38/15,757,789.74
  6. Step 6: Final answer
    x = 12,128,729.49

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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.