Home / 20,169,107.70-30,253,661.55-18,610,214.10

Finding the Fourth Proportional to 20,169,107.70, 30,253,661.55 and 18,610,214.10

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Solution

The fourth proportional to 20,169,107.70, 30,253,661.55 and 18,610,214.10 is: 27,915,321.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,107.70 : 30,253,661.55 = 18,610,214.10 : x
  2. Step 2: Convert to fraction form
    20,169,107.70/30,253,661.55 = 18,610,214.10/x
  3. Step 3: Cross multiply
    20,169,107.70x = 30,253,661.55 × 18,610,214.10
  4. Step 4: Simplify right side
    20,169,107.70x = 563,027,118,754,437.88
  5. Step 5: Solve for x
    x = 563,027,118,754,437.88/20,169,107.70
  6. Step 6: Final answer
    x = 27,915,321.15

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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.