Home / 12,867,161.68-19,304,478.05-5,186,842.93

Finding the Fourth Proportional to 12,867,161.68, 19,304,478.05 and 5,186,842.93

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Solution

The fourth proportional to 12,867,161.68, 19,304,478.05 and 5,186,842.93 is: 7,781,770.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,161.68 : 19,304,478.05 = 5,186,842.93 : x
  2. Step 2: Convert to fraction form
    12,867,161.68/19,304,478.05 = 5,186,842.93/x
  3. Step 3: Cross multiply
    12,867,161.68x = 19,304,478.05 × 5,186,842.93
  4. Step 4: Simplify right side
    12,867,161.68x = 100,129,295,490,982.69
  5. Step 5: Solve for x
    x = 100,129,295,490,982.69/12,867,161.68
  6. Step 6: Final answer
    x = 7,781,770.21

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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.