Home / 12,288,561.40-18,432,842.10-3,768,830.20

Finding the Fourth Proportional to 12,288,561.40, 18,432,842.10 and 3,768,830.20

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Solution

The fourth proportional to 12,288,561.40, 18,432,842.10 and 3,768,830.20 is: 5,653,245.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288,561.40 : 18,432,842.10 = 3,768,830.20 : x
  2. Step 2: Convert to fraction form
    12,288,561.40/18,432,842.10 = 3,768,830.20/x
  3. Step 3: Cross multiply
    12,288,561.40x = 18,432,842.10 × 3,768,830.20
  4. Step 4: Simplify right side
    12,288,561.40x = 69,470,251,978,311.43
  5. Step 5: Solve for x
    x = 69,470,251,978,311.43/12,288,561.40
  6. Step 6: Final answer
    x = 5,653,245.30

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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.