Home / 378,185,689.40-567,337,186.74-159,836,950.76

Finding the Fourth Proportional to 378,185,689.40, 567,337,186.74 and 159,836,950.76

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Solution

The fourth proportional to 378,185,689.40, 567,337,186.74 and 159,836,950.76 is: 239,780,215.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,185,689.40 : 567,337,186.74 = 159,836,950.76 : x
  2. Step 2: Convert to fraction form
    378,185,689.40/567,337,186.74 = 159,836,950.76/x
  3. Step 3: Cross multiply
    378,185,689.40x = 567,337,186.74 × 159,836,950.76
  4. Step 4: Simplify right side
    378,185,689.40x = 90,681,445,981,278,304
  5. Step 5: Solve for x
    x = 90,681,445,981,278,304/378,185,689.40
  6. Step 6: Final answer
    x = 239,780,215.18

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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.