Home / 19,989,960.72-29,986,770.96-5,612,931.52

Finding the Fourth Proportional to 19,989,960.72, 29,986,770.96 and 5,612,931.52

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Solution

The fourth proportional to 19,989,960.72, 29,986,770.96 and 5,612,931.52 is: 8,419,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,960.72 : 29,986,770.96 = 5,612,931.52 : x
  2. Step 2: Convert to fraction form
    19,989,960.72/29,986,770.96 = 5,612,931.52/x
  3. Step 3: Cross multiply
    19,989,960.72x = 29,986,770.96 × 5,612,931.52
  4. Step 4: Simplify right side
    19,989,960.72x = 168,313,691,904,404.66
  5. Step 5: Solve for x
    x = 168,313,691,904,404.66/19,989,960.72
  6. Step 6: Final answer
    x = 8,419,911.09

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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.