Home / 800,341,718.60-1,200,512,577.90-664,292,822.60

Finding the Fourth Proportional to 800,341,718.60, 1,200,512,577.90 and 664,292,822.60

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Solution

The fourth proportional to 800,341,718.60, 1,200,512,577.90 and 664,292,822.60 is: 996,439,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,341,718.60 : 1,200,512,577.90 = 664,292,822.60 : x
  2. Step 2: Convert to fraction form
    800,341,718.60/1,200,512,577.90 = 664,292,822.60/x
  3. Step 3: Cross multiply
    800,341,718.60x = 1,200,512,577.90 × 664,292,822.60
  4. Step 4: Simplify right side
    800,341,718.60x = 797,491,888,939,993,472
  5. Step 5: Solve for x
    x = 797,491,888,939,993,472/800,341,718.60
  6. Step 6: Final answer
    x = 996,439,233.90

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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.