Home / 9,021,390.80-13,532,086.20-7,320,779.60

Finding the Fourth Proportional to 9,021,390.80, 13,532,086.20 and 7,320,779.60

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Solution

The fourth proportional to 9,021,390.80, 13,532,086.20 and 7,320,779.60 is: 10,981,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021,390.80 : 13,532,086.20 = 7,320,779.60 : x
  2. Step 2: Convert to fraction form
    9,021,390.80/13,532,086.20 = 7,320,779.60/x
  3. Step 3: Cross multiply
    9,021,390.80x = 13,532,086.20 × 7,320,779.60
  4. Step 4: Simplify right side
    9,021,390.80x = 99,065,420,598,401.52
  5. Step 5: Solve for x
    x = 99,065,420,598,401.52/9,021,390.80
  6. Step 6: Final answer
    x = 10,981,169.40

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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.