Home / 331,807,621.20-497,711,431.80-263,279,288.40

Finding the Fourth Proportional to 331,807,621.20, 497,711,431.80 and 263,279,288.40

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Solution

The fourth proportional to 331,807,621.20, 497,711,431.80 and 263,279,288.40 is: 394,918,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,807,621.20 : 497,711,431.80 = 263,279,288.40 : x
  2. Step 2: Convert to fraction form
    331,807,621.20/497,711,431.80 = 263,279,288.40/x
  3. Step 3: Cross multiply
    331,807,621.20x = 497,711,431.80 × 263,279,288.40
  4. Step 4: Simplify right side
    331,807,621.20x = 131,037,111,592,849,136
  5. Step 5: Solve for x
    x = 131,037,111,592,849,136/331,807,621.20
  6. Step 6: Final answer
    x = 394,918,932.60

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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.