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Finding the Fourth Proportional to 120,981,714.40, 181,472,571.60 and 40,202,682.40

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Solution

The fourth proportional to 120,981,714.40, 181,472,571.60 and 40,202,682.40 is: 60,304,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,981,714.40 : 181,472,571.60 = 40,202,682.40 : x
  2. Step 2: Convert to fraction form
    120,981,714.40/181,472,571.60 = 40,202,682.40/x
  3. Step 3: Cross multiply
    120,981,714.40x = 181,472,571.60 × 40,202,682.40
  4. Step 4: Simplify right side
    120,981,714.40x = 7,295,684,160,346,059
  5. Step 5: Solve for x
    x = 7,295,684,160,346,059/120,981,714.40
  6. Step 6: Final answer
    x = 60,304,023.60

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1.5x scale

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.