Home / 145,690,820.40-218,536,230.60-73,131,409.20

Finding the Fourth Proportional to 145,690,820.40, 218,536,230.60 and 73,131,409.20

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Solution

The fourth proportional to 145,690,820.40, 218,536,230.60 and 73,131,409.20 is: 109,697,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,690,820.40 : 218,536,230.60 = 73,131,409.20 : x
  2. Step 2: Convert to fraction form
    145,690,820.40/218,536,230.60 = 73,131,409.20/x
  3. Step 3: Cross multiply
    145,690,820.40x = 218,536,230.60 × 73,131,409.20
  4. Step 4: Simplify right side
    145,690,820.40x = 15,981,862,505,034,162
  5. Step 5: Solve for x
    x = 15,981,862,505,034,162/145,690,820.40
  6. Step 6: Final answer
    x = 109,697,113.80

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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.