Home / 20,199,015.70-30,298,523.55-14,140,588.30

Finding the Fourth Proportional to 20,199,015.70, 30,298,523.55 and 14,140,588.30

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Solution

The fourth proportional to 20,199,015.70, 30,298,523.55 and 14,140,588.30 is: 21,210,882.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,199,015.70 : 30,298,523.55 = 14,140,588.30 : x
  2. Step 2: Convert to fraction form
    20,199,015.70/30,298,523.55 = 14,140,588.30/x
  3. Step 3: Cross multiply
    20,199,015.70x = 30,298,523.55 × 14,140,588.30
  4. Step 4: Simplify right side
    20,199,015.70x = 428,438,947,618,404.50
  5. Step 5: Solve for x
    x = 428,438,947,618,404.50/20,199,015.70
  6. Step 6: Final answer
    x = 21,210,882.45

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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.