Home / 8,258,357.60-12,387,536.40-5,388,576.20

Finding the Fourth Proportional to 8,258,357.60, 12,387,536.40 and 5,388,576.20

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Solution

The fourth proportional to 8,258,357.60, 12,387,536.40 and 5,388,576.20 is: 8,082,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258,357.60 : 12,387,536.40 = 5,388,576.20 : x
  2. Step 2: Convert to fraction form
    8,258,357.60/12,387,536.40 = 5,388,576.20/x
  3. Step 3: Cross multiply
    8,258,357.60x = 12,387,536.40 × 5,388,576.20
  4. Step 4: Simplify right side
    8,258,357.60x = 66,751,183,821,673.69
  5. Step 5: Solve for x
    x = 66,751,183,821,673.69/8,258,357.60
  6. Step 6: Final answer
    x = 8,082,864.30

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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.