Home / 90,288,610.20-124,605,966.57-51,137,351.73

Finding the Fourth Proportional to 90,288,610.20, 124,605,966.57 and 51,137,351.73

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Solution

The fourth proportional to 90,288,610.20, 124,605,966.57 and 51,137,351.73 is: 70,573,897.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,288,610.20 : 124,605,966.57 = 51,137,351.73 : x
  2. Step 2: Convert to fraction form
    90,288,610.20/124,605,966.57 = 51,137,351.73/x
  3. Step 3: Cross multiply
    90,288,610.20x = 124,605,966.57 × 51,137,351.73
  4. Step 4: Simplify right side
    90,288,610.20x = 6,372,019,139,954,946
  5. Step 5: Solve for x
    x = 6,372,019,139,954,946/90,288,610.20
  6. Step 6: Final answer
    x = 70,573,897.70

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Double scale
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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.