Home / 519,781,672.28-779,665,161.54-126,311,391.02

Finding the Fourth Proportional to 519,781,672.28, 779,665,161.54 and 126,311,391.02

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Solution

The fourth proportional to 519,781,672.28, 779,665,161.54 and 126,311,391.02 is: 189,465,301.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,781,672.28 : 779,665,161.54 = 126,311,391.02 : x
  2. Step 2: Convert to fraction form
    519,781,672.28/779,665,161.54 = 126,311,391.02/x
  3. Step 3: Cross multiply
    519,781,672.28x = 779,665,161.54 × 126,311,391.02
  4. Step 4: Simplify right side
    519,781,672.28x = 98,480,591,083,950,400
  5. Step 5: Solve for x
    x = 98,480,591,083,950,400/519,781,672.28
  6. Step 6: Final answer
    x = 189,465,301.18

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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.