Home / 20,215,810.30-30,334,213.05-8,857,407.10

Finding the Fourth Proportional to 20,215,810.30, 30,334,213.05 and 8,857,407.10

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Solution

The fourth proportional to 20,215,810.30, 30,334,213.05 and 8,857,407.10 is: 13,290,710.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215,810.30 : 30,334,213.05 = 8,857,407.10 : x
  2. Step 2: Convert to fraction form
    20,215,810.30/30,334,213.05 = 8,857,407.10/x
  3. Step 3: Cross multiply
    20,215,810.30x = 30,334,213.05 × 8,857,407.10
  4. Step 4: Simplify right side
    20,215,810.30x = 268,682,474,041,982.66
  5. Step 5: Solve for x
    x = 268,682,474,041,982.66/20,215,810.30
  6. Step 6: Final answer
    x = 13,290,710.10

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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.