Home / 90,372,449.20-124,714,736.76-49,119,330.64

Finding the Fourth Proportional to 90,372,449.20, 124,714,736.76 and 49,119,330.64

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Solution

The fourth proportional to 90,372,449.20, 124,714,736.76 and 49,119,330.64 is: 67,785,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,372,449.20 : 124,714,736.76 = 49,119,330.64 : x
  2. Step 2: Convert to fraction form
    90,372,449.20/124,714,736.76 = 49,119,330.64/x
  3. Step 3: Cross multiply
    90,372,449.20x = 124,714,736.76 × 49,119,330.64
  4. Step 4: Simplify right side
    90,372,449.20x = 6,125,904,390,595,003
  5. Step 5: Solve for x
    x = 6,125,904,390,595,003/90,372,449.20
  6. Step 6: Final answer
    x = 67,785,087.65

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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.