Home / 862,605,344.70-1,292,591,375.01-512,161,316.82

Finding the Fourth Proportional to 862,605,344.70, 1,292,591,375.01 and 512,161,316.82

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Solution

The fourth proportional to 862,605,344.70, 1,292,591,375.01 and 512,161,316.82 is: 767,460,235.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,605,344.70 : 1,292,591,375.01 = 512,161,316.82 : x
  2. Step 2: Convert to fraction form
    862,605,344.70/1,292,591,375.01 = 512,161,316.82/x
  3. Step 3: Cross multiply
    862,605,344.70x = 1,292,591,375.01 × 512,161,316.82
  4. Step 4: Simplify right side
    862,605,344.70x = 662,015,300,735,296,000
  5. Step 5: Solve for x
    x = 662,015,300,735,296,000/862,605,344.70
  6. Step 6: Final answer
    x = 767,460,235.21

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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.