Home / 499,392,002.20-749,088,003.30-318,441,371.80

Finding the Fourth Proportional to 499,392,002.20, 749,088,003.30 and 318,441,371.80

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Solution

The fourth proportional to 499,392,002.20, 749,088,003.30 and 318,441,371.80 is: 477,662,057.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,392,002.20 : 749,088,003.30 = 318,441,371.80 : x
  2. Step 2: Convert to fraction form
    499,392,002.20/749,088,003.30 = 318,441,371.80/x
  3. Step 3: Cross multiply
    499,392,002.20x = 749,088,003.30 × 318,441,371.80
  4. Step 4: Simplify right side
    499,392,002.20x = 238,540,611,369,774,912
  5. Step 5: Solve for x
    x = 238,540,611,369,774,912/499,392,002.20
  6. Step 6: Final answer
    x = 477,662,057.70

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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.