Home / 141,793,977.20-212,690,965.80-121,386,642.80

Finding the Fourth Proportional to 141,793,977.20, 212,690,965.80 and 121,386,642.80

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Solution

The fourth proportional to 141,793,977.20, 212,690,965.80 and 121,386,642.80 is: 182,079,964.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,793,977.20 : 212,690,965.80 = 121,386,642.80 : x
  2. Step 2: Convert to fraction form
    141,793,977.20/212,690,965.80 = 121,386,642.80/x
  3. Step 3: Cross multiply
    141,793,977.20x = 212,690,965.80 × 121,386,642.80
  4. Step 4: Simplify right side
    141,793,977.20x = 25,817,842,292,351,616
  5. Step 5: Solve for x
    x = 25,817,842,292,351,616/141,793,977.20
  6. Step 6: Final answer
    x = 182,079,964.20

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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.