Home / 90,640,218.20-125,083,519.11-49,387,110.57

Finding the Fourth Proportional to 90,640,218.20, 125,083,519.11 and 49,387,110.57

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Solution

The fourth proportional to 90,640,218.20, 125,083,519.11 and 49,387,110.57 is: 68,154,222.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,640,218.20 : 125,083,519.11 = 49,387,110.57 : x
  2. Step 2: Convert to fraction form
    90,640,218.20/125,083,519.11 = 49,387,110.57/x
  3. Step 3: Cross multiply
    90,640,218.20x = 125,083,519.11 × 49,387,110.57
  4. Step 4: Simplify right side
    90,640,218.20x = 6,177,513,588,770,278
  5. Step 5: Solve for x
    x = 6,177,513,588,770,278/90,640,218.20
  6. Step 6: Final answer
    x = 68,154,222.39

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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.