Home / 499,431,208.40-749,146,812.60-489,227,541.20

Finding the Fourth Proportional to 499,431,208.40, 749,146,812.60 and 489,227,541.20

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Solution

The fourth proportional to 499,431,208.40, 749,146,812.60 and 489,227,541.20 is: 733,841,311.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,431,208.40 : 749,146,812.60 = 489,227,541.20 : x
  2. Step 2: Convert to fraction form
    499,431,208.40/749,146,812.60 = 489,227,541.20/x
  3. Step 3: Cross multiply
    499,431,208.40x = 749,146,812.60 × 489,227,541.20
  4. Step 4: Simplify right side
    499,431,208.40x = 366,503,253,126,115,200
  5. Step 5: Solve for x
    x = 366,503,253,126,115,200/499,431,208.40
  6. Step 6: Final answer
    x = 733,841,311.80

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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.