Home / 136,891,134-188,909,764.92-78,944,382

Finding the Fourth Proportional to 136,891,134, 188,909,764.92 and 78,944,382

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Solution

The fourth proportional to 136,891,134, 188,909,764.92 and 78,944,382 is: 108,943,247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,891,134 : 188,909,764.92 = 78,944,382 : x
  2. Step 2: Convert to fraction form
    136,891,134/188,909,764.92 = 78,944,382/x
  3. Step 3: Cross multiply
    136,891,134x = 188,909,764.92 × 78,944,382
  4. Step 4: Simplify right side
    136,891,134x = 14,913,364,645,374,678
  5. Step 5: Solve for x
    x = 14,913,364,645,374,678/136,891,134
  6. Step 6: Final answer
    x = 108,943,247.16

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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.