Home / 12,097,231.60-18,145,847.40-7,618,255.60

Finding the Fourth Proportional to 12,097,231.60, 18,145,847.40 and 7,618,255.60

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Solution

The fourth proportional to 12,097,231.60, 18,145,847.40 and 7,618,255.60 is: 11,427,383.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,097,231.60 : 18,145,847.40 = 7,618,255.60 : x
  2. Step 2: Convert to fraction form
    12,097,231.60/18,145,847.40 = 7,618,255.60/x
  3. Step 3: Cross multiply
    12,097,231.60x = 18,145,847.40 × 7,618,255.60
  4. Step 4: Simplify right side
    12,097,231.60x = 138,239,703,571,795.42
  5. Step 5: Solve for x
    x = 138,239,703,571,795.42/12,097,231.60
  6. Step 6: Final answer
    x = 11,427,383.40

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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.