Home / 8,305,679.40-12,458,519.10-5,100,412.20

Finding the Fourth Proportional to 8,305,679.40, 12,458,519.10 and 5,100,412.20

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Solution

The fourth proportional to 8,305,679.40, 12,458,519.10 and 5,100,412.20 is: 7,650,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305,679.40 : 12,458,519.10 = 5,100,412.20 : x
  2. Step 2: Convert to fraction form
    8,305,679.40/12,458,519.10 = 5,100,412.20/x
  3. Step 3: Cross multiply
    8,305,679.40x = 12,458,519.10 × 5,100,412.20
  4. Step 4: Simplify right side
    8,305,679.40x = 63,543,582,811,573.02
  5. Step 5: Solve for x
    x = 63,543,582,811,573.02/8,305,679.40
  6. Step 6: Final answer
    x = 7,650,618.30

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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.