Home / 89,728,817.40-134,593,226.10-76,814,801.10

Finding the Fourth Proportional to 89,728,817.40, 134,593,226.10 and 76,814,801.10

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Solution

The fourth proportional to 89,728,817.40, 134,593,226.10 and 76,814,801.10 is: 115,222,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,728,817.40 : 134,593,226.10 = 76,814,801.10 : x
  2. Step 2: Convert to fraction form
    89,728,817.40/134,593,226.10 = 76,814,801.10/x
  3. Step 3: Cross multiply
    89,728,817.40x = 134,593,226.10 × 76,814,801.10
  4. Step 4: Simplify right side
    89,728,817.40x = 10,338,751,892,278,828
  5. Step 5: Solve for x
    x = 10,338,751,892,278,828/89,728,817.40
  6. Step 6: Final answer
    x = 115,222,201.65

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Double scale
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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.