Home / 15,059,200.80-20,781,640.80-8,534,073.60

Finding the Fourth Proportional to 15,059,200.80, 20,781,640.80 and 8,534,073.60

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Solution

The fourth proportional to 15,059,200.80, 20,781,640.80 and 8,534,073.60 is: 11,776,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,059,200.80 : 20,781,640.80 = 8,534,073.60 : x
  2. Step 2: Convert to fraction form
    15,059,200.80/20,781,640.80 = 8,534,073.60/x
  3. Step 3: Cross multiply
    15,059,200.80x = 20,781,640.80 × 8,534,073.60
  4. Step 4: Simplify right side
    15,059,200.80x = 177,352,052,115,962.88
  5. Step 5: Solve for x
    x = 177,352,052,115,962.88/15,059,200.80
  6. Step 6: Final answer
    x = 11,776,989.66

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1.5x scale

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.