Home / 140,963,799.38-211,653,264.20-78,836,834.61

Finding the Fourth Proportional to 140,963,799.38, 211,653,264.20 and 78,836,834.61

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Solution

The fourth proportional to 140,963,799.38, 211,653,264.20 and 78,836,834.61 is: 118,371,336.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,963,799.38 : 211,653,264.20 = 78,836,834.61 : x
  2. Step 2: Convert to fraction form
    140,963,799.38/211,653,264.20 = 78,836,834.61/x
  3. Step 3: Cross multiply
    140,963,799.38x = 211,653,264.20 × 78,836,834.61
  4. Step 4: Simplify right side
    140,963,799.38x = 16,686,073,384,402,032
  5. Step 5: Solve for x
    x = 16,686,073,384,402,032/140,963,799.38
  6. Step 6: Final answer
    x = 118,371,336.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.