Home / 206,898,419.88-309,996,433.26-124,844,891.76

Finding the Fourth Proportional to 206,898,419.88, 309,996,433.26 and 124,844,891.76

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Solution

The fourth proportional to 206,898,419.88, 309,996,433.26 and 124,844,891.76 is: 187,055,421.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,898,419.88 : 309,996,433.26 = 124,844,891.76 : x
  2. Step 2: Convert to fraction form
    206,898,419.88/309,996,433.26 = 124,844,891.76/x
  3. Step 3: Cross multiply
    206,898,419.88x = 309,996,433.26 × 124,844,891.76
  4. Step 4: Simplify right side
    206,898,419.88x = 38,701,471,156,330,768
  5. Step 5: Solve for x
    x = 38,701,471,156,330,768/206,898,419.88
  6. Step 6: Final answer
    x = 187,055,421.59

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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.