Home / 20,388,002.80-30,582,004.20-11,318,076.40

Finding the Fourth Proportional to 20,388,002.80, 30,582,004.20 and 11,318,076.40

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Solution

The fourth proportional to 20,388,002.80, 30,582,004.20 and 11,318,076.40 is: 16,977,114.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388,002.80 : 30,582,004.20 = 11,318,076.40 : x
  2. Step 2: Convert to fraction form
    20,388,002.80/30,582,004.20 = 11,318,076.40/x
  3. Step 3: Cross multiply
    20,388,002.80x = 30,582,004.20 × 11,318,076.40
  4. Step 4: Simplify right side
    20,388,002.80x = 346,129,460,000,720.88
  5. Step 5: Solve for x
    x = 346,129,460,000,720.88/20,388,002.80
  6. Step 6: Final answer
    x = 16,977,114.60

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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.