Home / 90,640,211.08-125,083,509.28-49,387,103.44

Finding the Fourth Proportional to 90,640,211.08, 125,083,509.28 and 49,387,103.44

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Solution

The fourth proportional to 90,640,211.08, 125,083,509.28 and 49,387,103.44 is: 68,154,212.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,640,211.08 : 125,083,509.28 = 49,387,103.44 : x
  2. Step 2: Convert to fraction form
    90,640,211.08/125,083,509.28 = 49,387,103.44/x
  3. Step 3: Cross multiply
    90,640,211.08x = 125,083,509.28 × 49,387,103.44
  4. Step 4: Simplify right side
    90,640,211.08x = 6,177,512,211,449,560
  5. Step 5: Solve for x
    x = 6,177,512,211,449,560/90,640,211.08
  6. Step 6: Final answer
    x = 68,154,212.55

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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.