Home / 12,867,159.18-19,304,474.30-5,186,840.43

Finding the Fourth Proportional to 12,867,159.18, 19,304,474.30 and 5,186,840.43

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Solution

The fourth proportional to 12,867,159.18, 19,304,474.30 and 5,186,840.43 is: 7,781,766.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,159.18 : 19,304,474.30 = 5,186,840.43 : x
  2. Step 2: Convert to fraction form
    12,867,159.18/19,304,474.30 = 5,186,840.43/x
  3. Step 3: Cross multiply
    12,867,159.18x = 19,304,474.30 × 5,186,840.43
  4. Step 4: Simplify right side
    12,867,159.18x = 100,129,227,753,201.75
  5. Step 5: Solve for x
    x = 100,129,227,753,201.75/12,867,159.18
  6. Step 6: Final answer
    x = 7,781,766.46

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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.