Home / 87,654,309.12-121,001,689.08-52,384,556.88

Finding the Fourth Proportional to 87,654,309.12, 121,001,689.08 and 52,384,556.88

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Solution

The fourth proportional to 87,654,309.12, 121,001,689.08 and 52,384,556.88 is: 72,313,842.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,654,309.12 : 121,001,689.08 = 52,384,556.88 : x
  2. Step 2: Convert to fraction form
    87,654,309.12/121,001,689.08 = 52,384,556.88/x
  3. Step 3: Cross multiply
    87,654,309.12x = 121,001,689.08 × 52,384,556.88
  4. Step 4: Simplify right side
    87,654,309.12x = 6,338,619,864,187,335
  5. Step 5: Solve for x
    x = 6,338,619,864,187,335/87,654,309.12
  6. Step 6: Final answer
    x = 72,313,842.04

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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.