Home / 89,693,553.60-134,540,330.40-85,214,577.60

Finding the Fourth Proportional to 89,693,553.60, 134,540,330.40 and 85,214,577.60

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Solution

The fourth proportional to 89,693,553.60, 134,540,330.40 and 85,214,577.60 is: 127,821,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,693,553.60 : 134,540,330.40 = 85,214,577.60 : x
  2. Step 2: Convert to fraction form
    89,693,553.60/134,540,330.40 = 85,214,577.60/x
  3. Step 3: Cross multiply
    89,693,553.60x = 134,540,330.40 × 85,214,577.60
  4. Step 4: Simplify right side
    89,693,553.60x = 11,464,797,425,200,438
  5. Step 5: Solve for x
    x = 11,464,797,425,200,438/89,693,553.60
  6. Step 6: Final answer
    x = 127,821,866.40

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Similar ratio
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1.5x scale

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.