Home / 20,388,000.30-30,582,000.45-11,318,073.90

Finding the Fourth Proportional to 20,388,000.30, 30,582,000.45 and 11,318,073.90

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Solution

The fourth proportional to 20,388,000.30, 30,582,000.45 and 11,318,073.90 is: 16,977,110.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,388,000.30 : 30,582,000.45 = 11,318,073.90 : x
  2. Step 2: Convert to fraction form
    20,388,000.30/30,582,000.45 = 11,318,073.90/x
  3. Step 3: Cross multiply
    20,388,000.30x = 30,582,000.45 × 11,318,073.90
  4. Step 4: Simplify right side
    20,388,000.30x = 346,129,341,102,933.25
  5. Step 5: Solve for x
    x = 346,129,341,102,933.25/20,388,000.30
  6. Step 6: Final answer
    x = 16,977,110.85

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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.