Home / 20,169,102.70-30,253,654.05-18,610,209.10

Finding the Fourth Proportional to 20,169,102.70, 30,253,654.05 and 18,610,209.10

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Solution

The fourth proportional to 20,169,102.70, 30,253,654.05 and 18,610,209.10 is: 27,915,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,169,102.70 : 30,253,654.05 = 18,610,209.10 : x
  2. Step 2: Convert to fraction form
    20,169,102.70/30,253,654.05 = 18,610,209.10/x
  3. Step 3: Cross multiply
    20,169,102.70x = 30,253,654.05 × 18,610,209.10
  4. Step 4: Simplify right side
    20,169,102.70x = 563,026,827,909,561.88
  5. Step 5: Solve for x
    x = 563,026,827,909,561.88/20,169,102.70
  6. Step 6: Final answer
    x = 27,915,313.65

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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.