Home / 762,588,124.20-1,144,323,505.56-319,891,157.43

Finding the Fourth Proportional to 762,588,124.20, 1,144,323,505.56 and 319,891,157.43

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Solution

The fourth proportional to 762,588,124.20, 1,144,323,505.56 and 319,891,157.43 is: 480,021,861.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,588,124.20 : 1,144,323,505.56 = 319,891,157.43 : x
  2. Step 2: Convert to fraction form
    762,588,124.20/1,144,323,505.56 = 319,891,157.43/x
  3. Step 3: Cross multiply
    762,588,124.20x = 1,144,323,505.56 × 319,891,157.43
  4. Step 4: Simplify right side
    762,588,124.20x = 366,058,970,667,943,424
  5. Step 5: Solve for x
    x = 366,058,970,667,943,424/762,588,124.20
  6. Step 6: Final answer
    x = 480,021,861.15

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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.