Home / 12,109,480.32-16,715,132.28-7,216,236.84

Finding the Fourth Proportional to 12,109,480.32, 16,715,132.28 and 7,216,236.84

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Solution

The fourth proportional to 12,109,480.32, 16,715,132.28 and 7,216,236.84 is: 9,960,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,480.32 : 16,715,132.28 = 7,216,236.84 : x
  2. Step 2: Convert to fraction form
    12,109,480.32/16,715,132.28 = 7,216,236.84/x
  3. Step 3: Cross multiply
    12,109,480.32x = 16,715,132.28 × 7,216,236.84
  4. Step 4: Simplify right side
    12,109,480.32x = 120,620,353,344,409.19
  5. Step 5: Solve for x
    x = 120,620,353,344,409.19/12,109,480.32
  6. Step 6: Final answer
    x = 9,960,819.97

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.