Home / 13,839,689.28-18,932,793-13,781,397.57

Finding the Fourth Proportional to 13,839,689.28, 18,932,793 and 13,781,397.57

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Solution

The fourth proportional to 13,839,689.28, 18,932,793 and 13,781,397.57 is: 18,853,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839,689.28 : 18,932,793 = 13,781,397.57 : x
  2. Step 2: Convert to fraction form
    13,839,689.28/18,932,793 = 13,781,397.57/x
  3. Step 3: Cross multiply
    13,839,689.28x = 18,932,793 × 13,781,397.57
  4. Step 4: Simplify right side
    13,839,689.28x = 260,920,347,443,513.03
  5. Step 5: Solve for x
    x = 260,920,347,443,513.03/13,839,689.28
  6. Step 6: Final answer
    x = 18,853,049.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.