Home / 90,503,117.88-124,907,753.88-53,321,510.76

Finding the Fourth Proportional to 90,503,117.88, 124,907,753.88 and 53,321,510.76

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Solution

The fourth proportional to 90,503,117.88, 124,907,753.88 and 53,321,510.76 is: 73,591,609.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,503,117.88 : 124,907,753.88 = 53,321,510.76 : x
  2. Step 2: Convert to fraction form
    90,503,117.88/124,907,753.88 = 53,321,510.76/x
  3. Step 3: Cross multiply
    90,503,117.88x = 124,907,753.88 × 53,321,510.76
  4. Step 4: Simplify right side
    90,503,117.88x = 6,660,270,142,519,851
  5. Step 5: Solve for x
    x = 6,660,270,142,519,851/90,503,117.88
  6. Step 6: Final answer
    x = 73,591,609.86

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Double scale
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Similar ratio
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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.