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Finding the Fourth Proportional to 399,542,502.40, 599,353,670.40 and 108,414,246.40

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Solution

The fourth proportional to 399,542,502.40, 599,353,670.40 and 108,414,246.40 is: 162,632,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,542,502.40 : 599,353,670.40 = 108,414,246.40 : x
  2. Step 2: Convert to fraction form
    399,542,502.40/599,353,670.40 = 108,414,246.40/x
  3. Step 3: Cross multiply
    399,542,502.40x = 599,353,670.40 × 108,414,246.40
  4. Step 4: Simplify right side
    399,542,502.40x = 64,978,476,503,489,984
  5. Step 5: Solve for x
    x = 64,978,476,503,489,984/399,542,502.40
  6. Step 6: Final answer
    x = 162,632,200.86

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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.