Home / 340,086,472.11-469,304,233.70-189,386,900.78

Finding the Fourth Proportional to 340,086,472.11, 469,304,233.70 and 189,386,900.78

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Solution

The fourth proportional to 340,086,472.11, 469,304,233.70 and 189,386,900.78 is: 261,345,515.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,086,472.11 : 469,304,233.70 = 189,386,900.78 : x
  2. Step 2: Convert to fraction form
    340,086,472.11/469,304,233.70 = 189,386,900.78/x
  3. Step 3: Cross multiply
    340,086,472.11x = 469,304,233.70 × 189,386,900.78
  4. Step 4: Simplify right side
    340,086,472.11x = 88,880,074,340,082,384
  5. Step 5: Solve for x
    x = 88,880,074,340,082,384/340,086,472.11
  6. Step 6: Final answer
    x = 261,345,515.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.