Home / 499,760,144.40-749,709,967.80-208,560,517.20

Finding the Fourth Proportional to 499,760,144.40, 749,709,967.80 and 208,560,517.20

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Solution

The fourth proportional to 499,760,144.40, 749,709,967.80 and 208,560,517.20 is: 312,869,884.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,760,144.40 : 749,709,967.80 = 208,560,517.20 : x
  2. Step 2: Convert to fraction form
    499,760,144.40/749,709,967.80 = 208,560,517.20/x
  3. Step 3: Cross multiply
    499,760,144.40x = 749,709,967.80 × 208,560,517.20
  4. Step 4: Simplify right side
    499,760,144.40x = 156,359,898,634,363,328
  5. Step 5: Solve for x
    x = 156,359,898,634,363,328/499,760,144.40
  6. Step 6: Final answer
    x = 312,869,884.46

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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.