Home / 667,443,428.72-920,987,272.60-365,949,399.41

Finding the Fourth Proportional to 667,443,428.72, 920,987,272.60 and 365,949,399.41

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Solution

The fourth proportional to 667,443,428.72, 920,987,272.60 and 365,949,399.41 is: 504,963,753.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,443,428.72 : 920,987,272.60 = 365,949,399.41 : x
  2. Step 2: Convert to fraction form
    667,443,428.72/920,987,272.60 = 365,949,399.41/x
  3. Step 3: Cross multiply
    667,443,428.72x = 920,987,272.60 × 365,949,399.41
  4. Step 4: Simplify right side
    667,443,428.72x = 337,034,739,272,224,000
  5. Step 5: Solve for x
    x = 337,034,739,272,224,000/667,443,428.72
  6. Step 6: Final answer
    x = 504,963,753.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.