Home / 12,867,166.31-19,304,484.98-5,186,847.56

Finding the Fourth Proportional to 12,867,166.31, 19,304,484.98 and 5,186,847.56

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Solution

The fourth proportional to 12,867,166.31, 19,304,484.98 and 5,186,847.56 is: 7,781,777.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,166.31 : 19,304,484.98 = 5,186,847.56 : x
  2. Step 2: Convert to fraction form
    12,867,166.31/19,304,484.98 = 5,186,847.56/x
  3. Step 3: Cross multiply
    12,867,166.31x = 19,304,484.98 × 5,186,847.56
  4. Step 4: Simplify right side
    12,867,166.31x = 100,129,420,693,112.98
  5. Step 5: Solve for x
    x = 100,129,420,693,112.98/12,867,166.31
  6. Step 6: Final answer
    x = 7,781,777.15

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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.