Home / 8,348,049.40-12,522,074.10-5,142,782.20

Finding the Fourth Proportional to 8,348,049.40, 12,522,074.10 and 5,142,782.20

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Solution

The fourth proportional to 8,348,049.40, 12,522,074.10 and 5,142,782.20 is: 7,714,173.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348,049.40 : 12,522,074.10 = 5,142,782.20 : x
  2. Step 2: Convert to fraction form
    8,348,049.40/12,522,074.10 = 5,142,782.20/x
  3. Step 3: Cross multiply
    8,348,049.40x = 12,522,074.10 × 5,142,782.20
  4. Step 4: Simplify right side
    8,348,049.40x = 64,398,299,788,561.02
  5. Step 5: Solve for x
    x = 64,398,299,788,561.02/8,348,049.40
  6. Step 6: Final answer
    x = 7,714,173.30

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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.