Home / 3,072,139.80-4,608,209.70-2,126,578.20

Finding the Fourth Proportional to 3,072,139.80, 4,608,209.70 and 2,126,578.20

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Solution

The fourth proportional to 3,072,139.80, 4,608,209.70 and 2,126,578.20 is: 3,189,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072,139.80 : 4,608,209.70 = 2,126,578.20 : x
  2. Step 2: Convert to fraction form
    3,072,139.80/4,608,209.70 = 2,126,578.20/x
  3. Step 3: Cross multiply
    3,072,139.80x = 4,608,209.70 × 2,126,578.20
  4. Step 4: Simplify right side
    3,072,139.80x = 9,799,718,289,048.54
  5. Step 5: Solve for x
    x = 9,799,718,289,048.54/3,072,139.80
  6. Step 6: Final answer
    x = 3,189,867.30

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Half scale
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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.