Home / 135,976,854.72-187,647,020.64-74,097,001.92

Finding the Fourth Proportional to 135,976,854.72, 187,647,020.64 and 74,097,001.92

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Solution

The fourth proportional to 135,976,854.72, 187,647,020.64 and 74,097,001.92 is: 102,253,296.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,976,854.72 : 187,647,020.64 = 74,097,001.92 : x
  2. Step 2: Convert to fraction form
    135,976,854.72/187,647,020.64 = 74,097,001.92/x
  3. Step 3: Cross multiply
    135,976,854.72x = 187,647,020.64 × 74,097,001.92
  4. Step 4: Simplify right side
    135,976,854.72x = 13,904,081,648,644,358
  5. Step 5: Solve for x
    x = 13,904,081,648,644,358/135,976,854.72
  6. Step 6: Final answer
    x = 102,253,296.54

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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.