Home / 20,502,540.28-30,768,950.73-9,719,879

Finding the Fourth Proportional to 20,502,540.28, 30,768,950.73 and 9,719,879

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Solution

The fourth proportional to 20,502,540.28, 30,768,950.73 and 9,719,879 is: 14,586,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,502,540.28 : 30,768,950.73 = 9,719,879 : x
  2. Step 2: Convert to fraction form
    20,502,540.28/30,768,950.73 = 9,719,879/x
  3. Step 3: Cross multiply
    20,502,540.28x = 30,768,950.73 × 9,719,879
  4. Step 4: Simplify right side
    20,502,540.28x = 299,070,478,052,561.69
  5. Step 5: Solve for x
    x = 299,070,478,052,561.69/20,502,540.28
  6. Step 6: Final answer
    x = 14,586,996.25

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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.