Home / 81,673,419.60-122,510,129.40-36,239,806.80

Finding the Fourth Proportional to 81,673,419.60, 122,510,129.40 and 36,239,806.80

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Solution

The fourth proportional to 81,673,419.60, 122,510,129.40 and 36,239,806.80 is: 54,359,710.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673,419.60 : 122,510,129.40 = 36,239,806.80 : x
  2. Step 2: Convert to fraction form
    81,673,419.60/122,510,129.40 = 36,239,806.80/x
  3. Step 3: Cross multiply
    81,673,419.60x = 122,510,129.40 × 36,239,806.80
  4. Step 4: Simplify right side
    81,673,419.60x = 4,439,743,420,499,000
  5. Step 5: Solve for x
    x = 4,439,743,420,499,000/81,673,419.60
  6. Step 6: Final answer
    x = 54,359,710.20

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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.