Home / 87,822,649.25-121,155,512.05-53,004,209.57

Finding the Fourth Proportional to 87,822,649.25, 121,155,512.05 and 53,004,209.57

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Solution

The fourth proportional to 87,822,649.25, 121,155,512.05 and 53,004,209.57 is: 73,121,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,822,649.25 : 121,155,512.05 = 53,004,209.57 : x
  2. Step 2: Convert to fraction form
    87,822,649.25/121,155,512.05 = 53,004,209.57/x
  3. Step 3: Cross multiply
    87,822,649.25x = 121,155,512.05 × 53,004,209.57
  4. Step 4: Simplify right side
    87,822,649.25x = 6,421,752,151,258,860
  5. Step 5: Solve for x
    x = 6,421,752,151,258,860/87,822,649.25
  6. Step 6: Final answer
    x = 73,121,822.29

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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.