Home / 120,981,731.40-181,472,597.10-40,202,699.40

Finding the Fourth Proportional to 120,981,731.40, 181,472,597.10 and 40,202,699.40

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Solution

The fourth proportional to 120,981,731.40, 181,472,597.10 and 40,202,699.40 is: 60,304,049.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981,731.40 : 181,472,597.10 = 40,202,699.40 : x
  2. Step 2: Convert to fraction form
    120,981,731.40/181,472,597.10 = 40,202,699.40/x
  3. Step 3: Cross multiply
    120,981,731.40x = 181,472,597.10 × 40,202,699.40
  4. Step 4: Simplify right side
    120,981,731.40x = 7,295,688,270,548,611
  5. Step 5: Solve for x
    x = 7,295,688,270,548,611/120,981,731.40
  6. Step 6: Final answer
    x = 60,304,049.10

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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.