Home / 128,086,234.56-176,758,769.52-69,348,891.60

Finding the Fourth Proportional to 128,086,234.56, 176,758,769.52 and 69,348,891.60

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Solution

The fourth proportional to 128,086,234.56, 176,758,769.52 and 69,348,891.60 is: 95,701,343.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,086,234.56 : 176,758,769.52 = 69,348,891.60 : x
  2. Step 2: Convert to fraction form
    128,086,234.56/176,758,769.52 = 69,348,891.60/x
  3. Step 3: Cross multiply
    128,086,234.56x = 176,758,769.52 × 69,348,891.60
  4. Step 4: Simplify right side
    128,086,234.56x = 12,258,024,746,791,864
  5. Step 5: Solve for x
    x = 12,258,024,746,791,864/128,086,234.56
  6. Step 6: Final answer
    x = 95,701,343.62

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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.