Home / 13,613,016.76-18,785,722.08-7,418,118.22

Finding the Fourth Proportional to 13,613,016.76, 18,785,722.08 and 7,418,118.22

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Solution

The fourth proportional to 13,613,016.76, 18,785,722.08 and 7,418,118.22 is: 10,236,871.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613,016.76 : 18,785,722.08 = 7,418,118.22 : x
  2. Step 2: Convert to fraction form
    13,613,016.76/18,785,722.08 = 7,418,118.22/x
  3. Step 3: Cross multiply
    13,613,016.76x = 18,785,722.08 × 7,418,118.22
  4. Step 4: Simplify right side
    13,613,016.76x = 139,354,707,237,504.28
  5. Step 5: Solve for x
    x = 139,354,707,237,504.28/13,613,016.76
  6. Step 6: Final answer
    x = 10,236,871.79

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Double scale
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1.5x scale

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.