Home / 122,376,585-168,891,886.68-91,382,945.88

Finding the Fourth Proportional to 122,376,585, 168,891,886.68 and 91,382,945.88

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Solution

The fourth proportional to 122,376,585, 168,891,886.68 and 91,382,945.88 is: 126,117,575.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,376,585 : 168,891,886.68 = 91,382,945.88 : x
  2. Step 2: Convert to fraction form
    122,376,585/168,891,886.68 = 91,382,945.88/x
  3. Step 3: Cross multiply
    122,376,585x = 168,891,886.68 × 91,382,945.88
  4. Step 4: Simplify right side
    122,376,585x = 15,433,838,140,049,532
  5. Step 5: Solve for x
    x = 15,433,838,140,049,532/122,376,585
  6. Step 6: Final answer
    x = 126,117,575.03

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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.