Home / 427,153,867.44-640,792,200.60-132,071,999.55

Finding the Fourth Proportional to 427,153,867.44, 640,792,200.60 and 132,071,999.55

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Solution

The fourth proportional to 427,153,867.44, 640,792,200.60 and 132,071,999.55 is: 198,126,983.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,153,867.44 : 640,792,200.60 = 132,071,999.55 : x
  2. Step 2: Convert to fraction form
    427,153,867.44/640,792,200.60 = 132,071,999.55/x
  3. Step 3: Cross multiply
    427,153,867.44x = 640,792,200.60 × 132,071,999.55
  4. Step 4: Simplify right side
    427,153,867.44x = 84,630,707,229,286,704
  5. Step 5: Solve for x
    x = 84,630,707,229,286,704/427,153,867.44
  6. Step 6: Final answer
    x = 198,126,983.46

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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.