Home / 20,081,292.30-30,121,938.45-18,695,609.10

Finding the Fourth Proportional to 20,081,292.30, 30,121,938.45 and 18,695,609.10

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Solution

The fourth proportional to 20,081,292.30, 30,121,938.45 and 18,695,609.10 is: 28,043,413.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,081,292.30 : 30,121,938.45 = 18,695,609.10 : x
  2. Step 2: Convert to fraction form
    20,081,292.30/30,121,938.45 = 18,695,609.10/x
  3. Step 3: Cross multiply
    20,081,292.30x = 30,121,938.45 × 18,695,609.10
  4. Step 4: Simplify right side
    20,081,292.30x = 563,147,986,595,459.88
  5. Step 5: Solve for x
    x = 563,147,986,595,459.88/20,081,292.30
  6. Step 6: Final answer
    x = 28,043,413.65

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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.