Home / 13,138,822.05-18,131,514.60-7,258,457.91

Finding the Fourth Proportional to 13,138,822.05, 18,131,514.60 and 7,258,457.91

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Solution

The fourth proportional to 13,138,822.05, 18,131,514.60 and 7,258,457.91 is: 10,016,638.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,138,822.05 : 18,131,514.60 = 7,258,457.91 : x
  2. Step 2: Convert to fraction form
    13,138,822.05/18,131,514.60 = 7,258,457.91/x
  3. Step 3: Cross multiply
    13,138,822.05x = 18,131,514.60 × 7,258,457.91
  4. Step 4: Simplify right side
    13,138,822.05x = 131,606,835,568,650.50
  5. Step 5: Solve for x
    x = 131,606,835,568,650.50/13,138,822.05
  6. Step 6: Final answer
    x = 10,016,638.86

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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.