Home / 331,807,999.70-497,711,999.55-263,279,666.90

Finding the Fourth Proportional to 331,807,999.70, 497,711,999.55 and 263,279,666.90

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Solution

The fourth proportional to 331,807,999.70, 497,711,999.55 and 263,279,666.90 is: 394,919,500.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,807,999.70 : 497,711,999.55 = 263,279,666.90 : x
  2. Step 2: Convert to fraction form
    331,807,999.70/497,711,999.55 = 263,279,666.90/x
  3. Step 3: Cross multiply
    331,807,999.70x = 497,711,999.55 × 263,279,666.90
  4. Step 4: Simplify right side
    331,807,999.70x = 131,037,449,453,656,960
  5. Step 5: Solve for x
    x = 131,037,449,453,656,960/331,807,999.70
  6. Step 6: Final answer
    x = 394,919,500.35

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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.