Home / 431,793,052.40-647,691,476.10-136,689,621.93

Finding the Fourth Proportional to 431,793,052.40, 647,691,476.10 and 136,689,621.93

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Solution

The fourth proportional to 431,793,052.40, 647,691,476.10 and 136,689,621.93 is: 205,035,033.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,793,052.40 : 647,691,476.10 = 136,689,621.93 : x
  2. Step 2: Convert to fraction form
    431,793,052.40/647,691,476.10 = 136,689,621.93/x
  3. Step 3: Cross multiply
    431,793,052.40x = 647,691,476.10 × 136,689,621.93
  4. Step 4: Simplify right side
    431,793,052.40x = 88,532,702,996,856,704
  5. Step 5: Solve for x
    x = 88,532,702,996,856,704/431,793,052.40
  6. Step 6: Final answer
    x = 205,035,033.57

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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.