Home / 493,244,899.71-739,777,945.67-198,128,128.30

Finding the Fourth Proportional to 493,244,899.71, 739,777,945.67 and 198,128,128.30

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Solution

The fourth proportional to 493,244,899.71, 739,777,945.67 and 198,128,128.30 is: 297,156,280.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,244,899.71 : 739,777,945.67 = 198,128,128.30 : x
  2. Step 2: Convert to fraction form
    493,244,899.71/739,777,945.67 = 198,128,128.30/x
  3. Step 3: Cross multiply
    493,244,899.71x = 739,777,945.67 × 198,128,128.30
  4. Step 4: Simplify right side
    493,244,899.71x = 146,570,819,728,526,656
  5. Step 5: Solve for x
    x = 146,570,819,728,526,656/493,244,899.71
  6. Step 6: Final answer
    x = 297,156,280.41

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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.