Home / 12,867,161.18-19,304,477.30-5,186,842.43

Finding the Fourth Proportional to 12,867,161.18, 19,304,477.30 and 5,186,842.43

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Solution

The fourth proportional to 12,867,161.18, 19,304,477.30 and 5,186,842.43 is: 7,781,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,161.18 : 19,304,477.30 = 5,186,842.43 : x
  2. Step 2: Convert to fraction form
    12,867,161.18/19,304,477.30 = 5,186,842.43/x
  3. Step 3: Cross multiply
    12,867,161.18x = 19,304,477.30 × 5,186,842.43
  4. Step 4: Simplify right side
    12,867,161.18x = 100,129,281,922,677.62
  5. Step 5: Solve for x
    x = 100,129,281,922,677.62/12,867,161.18
  6. Step 6: Final answer
    x = 7,781,769.46

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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.