Home / 862,605,127.20-1,292,591,049.84-512,161,099.86

Finding the Fourth Proportional to 862,605,127.20, 1,292,591,049.84 and 512,161,099.86

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Solution

The fourth proportional to 862,605,127.20, 1,292,591,049.84 and 512,161,099.86 is: 767,459,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,605,127.20 : 1,292,591,049.84 = 512,161,099.86 : x
  2. Step 2: Convert to fraction form
    862,605,127.20/1,292,591,049.84 = 512,161,099.86/x
  3. Step 3: Cross multiply
    862,605,127.20x = 1,292,591,049.84 × 512,161,099.86
  4. Step 4: Simplify right side
    862,605,127.20x = 662,014,853,755,246,464
  5. Step 5: Solve for x
    x = 662,014,853,755,246,464/862,605,127.20
  6. Step 6: Final answer
    x = 767,459,910.54

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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.