Home / 20,043,987.30-30,066,965.10-10,478,049.30

Finding the Fourth Proportional to 20,043,987.30, 30,066,965.10 and 10,478,049.30

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Solution

The fourth proportional to 20,043,987.30, 30,066,965.10 and 10,478,049.30 is: 15,717,588.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,043,987.30 : 30,066,965.10 = 10,478,049.30 : x
  2. Step 2: Convert to fraction form
    20,043,987.30/30,066,965.10 = 10,478,049.30/x
  3. Step 3: Cross multiply
    20,043,987.30x = 30,066,965.10 × 10,478,049.30
  4. Step 4: Simplify right side
    20,043,987.30x = 315,043,142,619,179.44
  5. Step 5: Solve for x
    x = 315,043,142,619,179.44/20,043,987.30
  6. Step 6: Final answer
    x = 15,717,588.42

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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.