Home / 125,215,512.20-187,823,268.30-105,127,042.40

Finding the Fourth Proportional to 125,215,512.20, 187,823,268.30 and 105,127,042.40

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Solution

The fourth proportional to 125,215,512.20, 187,823,268.30 and 105,127,042.40 is: 157,690,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,215,512.20 : 187,823,268.30 = 105,127,042.40 : x
  2. Step 2: Convert to fraction form
    125,215,512.20/187,823,268.30 = 105,127,042.40/x
  3. Step 3: Cross multiply
    125,215,512.20x = 187,823,268.30 × 105,127,042.40
  4. Step 4: Simplify right side
    125,215,512.20x = 19,745,304,690,280,680
  5. Step 5: Solve for x
    x = 19,745,304,690,280,680/125,215,512.20
  6. Step 6: Final answer
    x = 157,690,563.60

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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.