Home / 12,478,459.20-18,717,688.80-3,501,844.80

Finding the Fourth Proportional to 12,478,459.20, 18,717,688.80 and 3,501,844.80

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Solution

The fourth proportional to 12,478,459.20, 18,717,688.80 and 3,501,844.80 is: 5,252,767.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478,459.20 : 18,717,688.80 = 3,501,844.80 : x
  2. Step 2: Convert to fraction form
    12,478,459.20/18,717,688.80 = 3,501,844.80/x
  3. Step 3: Cross multiply
    12,478,459.20x = 18,717,688.80 × 3,501,844.80
  4. Step 4: Simplify right side
    12,478,459.20x = 65,546,441,192,298.24
  5. Step 5: Solve for x
    x = 65,546,441,192,298.24/12,478,459.20
  6. Step 6: Final answer
    x = 5,252,767.20

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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.