Home / 862,286,448.92-1,189,954,130.33-491,008,480.29

Finding the Fourth Proportional to 862,286,448.92, 1,189,954,130.33 and 491,008,480.29

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Solution

The fourth proportional to 862,286,448.92, 1,189,954,130.33 and 491,008,480.29 is: 677,591,037.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,286,448.92 : 1,189,954,130.33 = 491,008,480.29 : x
  2. Step 2: Convert to fraction form
    862,286,448.92/1,189,954,130.33 = 491,008,480.29/x
  3. Step 3: Cross multiply
    862,286,448.92x = 1,189,954,130.33 × 491,008,480.29
  4. Step 4: Simplify right side
    862,286,448.92x = 584,277,569,149,369,472
  5. Step 5: Solve for x
    x = 584,277,569,149,369,472/862,286,448.92
  6. Step 6: Final answer
    x = 677,591,037.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.