Home / 12,069,228.45-18,103,842.68-7,274,449.65

Finding the Fourth Proportional to 12,069,228.45, 18,103,842.68 and 7,274,449.65

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Solution

The fourth proportional to 12,069,228.45, 18,103,842.68 and 7,274,449.65 is: 10,911,674.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069,228.45 : 18,103,842.68 = 7,274,449.65 : x
  2. Step 2: Convert to fraction form
    12,069,228.45/18,103,842.68 = 7,274,449.65/x
  3. Step 3: Cross multiply
    12,069,228.45x = 18,103,842.68 × 7,274,449.65
  4. Step 4: Simplify right side
    12,069,228.45x = 131,695,492,010,808.83
  5. Step 5: Solve for x
    x = 131,695,492,010,808.83/12,069,228.45
  6. Step 6: Final answer
    x = 10,911,674.48

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Double scale
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Similar ratio
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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.