Home / 285,659,350.40-428,489,025.60-149,386,505.60

Finding the Fourth Proportional to 285,659,350.40, 428,489,025.60 and 149,386,505.60

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Solution

The fourth proportional to 285,659,350.40, 428,489,025.60 and 149,386,505.60 is: 224,079,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,659,350.40 : 428,489,025.60 = 149,386,505.60 : x
  2. Step 2: Convert to fraction form
    285,659,350.40/428,489,025.60 = 149,386,505.60/x
  3. Step 3: Cross multiply
    285,659,350.40x = 428,489,025.60 × 149,386,505.60
  4. Step 4: Simplify right side
    285,659,350.40x = 64,010,478,222,332,944
  5. Step 5: Solve for x
    x = 64,010,478,222,332,944/285,659,350.40
  6. Step 6: Final answer
    x = 224,079,758.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.