Home / 39,229,581.40-54,135,459.78-21,586,833.64

Finding the Fourth Proportional to 39,229,581.40, 54,135,459.78 and 21,586,833.64

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Solution

The fourth proportional to 39,229,581.40, 54,135,459.78 and 21,586,833.64 is: 29,789,080.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229,581.40 : 54,135,459.78 = 21,586,833.64 : x
  2. Step 2: Convert to fraction form
    39,229,581.40/54,135,459.78 = 21,586,833.64/x
  3. Step 3: Cross multiply
    39,229,581.40x = 54,135,459.78 × 21,586,833.64
  4. Step 4: Simplify right side
    39,229,581.40x = 1,168,613,164,295,771
  5. Step 5: Solve for x
    x = 1,168,613,164,295,771/39,229,581.40
  6. Step 6: Final answer
    x = 29,789,080.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.