Home / 722,236,512.92-996,991,491.40-487,604,983.38

Finding the Fourth Proportional to 722,236,512.92, 996,991,491.40 and 487,604,983.38

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Solution

The fourth proportional to 722,236,512.92, 996,991,491.40 and 487,604,983.38 is: 673,100,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,236,512.92 : 996,991,491.40 = 487,604,983.38 : x
  2. Step 2: Convert to fraction form
    722,236,512.92/996,991,491.40 = 487,604,983.38/x
  3. Step 3: Cross multiply
    722,236,512.92x = 996,991,491.40 × 487,604,983.38
  4. Step 4: Simplify right side
    722,236,512.92x = 486,138,019,594,098,368
  5. Step 5: Solve for x
    x = 486,138,019,594,098,368/722,236,512.92
  6. Step 6: Final answer
    x = 673,100,862.25

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Double scale
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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.