Home / 76,419,380.80-114,644,199.68-21,832,431.04

Finding the Fourth Proportional to 76,419,380.80, 114,644,199.68 and 21,832,431.04

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Solution

The fourth proportional to 76,419,380.80, 114,644,199.68 and 21,832,431.04 is: 32,752,968.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,419,380.80 : 114,644,199.68 = 21,832,431.04 : x
  2. Step 2: Convert to fraction form
    76,419,380.80/114,644,199.68 = 21,832,431.04/x
  3. Step 3: Cross multiply
    76,419,380.80x = 114,644,199.68 × 21,832,431.04
  4. Step 4: Simplify right side
    76,419,380.80x = 2,502,961,583,649,590
  5. Step 5: Solve for x
    x = 2,502,961,583,649,590/76,419,380.80
  6. Step 6: Final answer
    x = 32,752,968.65

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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.