Home / 141,793,979.70-212,690,969.55-121,386,645.30

Finding the Fourth Proportional to 141,793,979.70, 212,690,969.55 and 121,386,645.30

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Solution

The fourth proportional to 141,793,979.70, 212,690,969.55 and 121,386,645.30 is: 182,079,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,793,979.70 : 212,690,969.55 = 121,386,645.30 : x
  2. Step 2: Convert to fraction form
    141,793,979.70/212,690,969.55 = 121,386,645.30/x
  3. Step 3: Cross multiply
    141,793,979.70x = 212,690,969.55 × 121,386,645.30
  4. Step 4: Simplify right side
    141,793,979.70x = 25,817,843,279,278,952
  5. Step 5: Solve for x
    x = 25,817,843,279,278,952/141,793,979.70
  6. Step 6: Final answer
    x = 182,079,967.95

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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.