Home / 141,793,681.20-212,690,521.80-121,386,346.80

Finding the Fourth Proportional to 141,793,681.20, 212,690,521.80 and 121,386,346.80

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Solution

The fourth proportional to 141,793,681.20, 212,690,521.80 and 121,386,346.80 is: 182,079,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,793,681.20 : 212,690,521.80 = 121,386,346.80 : x
  2. Step 2: Convert to fraction form
    141,793,681.20/212,690,521.80 = 121,386,346.80/x
  3. Step 3: Cross multiply
    141,793,681.20x = 212,690,521.80 × 121,386,346.80
  4. Step 4: Simplify right side
    141,793,681.20x = 25,817,725,440,287,760
  5. Step 5: Solve for x
    x = 25,817,725,440,287,760/141,793,681.20
  6. Step 6: Final answer
    x = 182,079,520.20

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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.