Home / 499,431,207.90-749,146,811.85-489,227,540.70

Finding the Fourth Proportional to 499,431,207.90, 749,146,811.85 and 489,227,540.70

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Solution

The fourth proportional to 499,431,207.90, 749,146,811.85 and 489,227,540.70 is: 733,841,311.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,431,207.90 : 749,146,811.85 = 489,227,540.70 : x
  2. Step 2: Convert to fraction form
    499,431,207.90/749,146,811.85 = 489,227,540.70/x
  3. Step 3: Cross multiply
    499,431,207.90x = 749,146,811.85 × 489,227,540.70
  4. Step 4: Simplify right side
    499,431,207.90x = 366,503,252,384,621,120
  5. Step 5: Solve for x
    x = 366,503,252,384,621,120/499,431,207.90
  6. Step 6: Final answer
    x = 733,841,311.05

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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.