Home / 13,589,367.66-18,757,005.03-8,012,478.78

Finding the Fourth Proportional to 13,589,367.66, 18,757,005.03 and 8,012,478.78

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Solution

The fourth proportional to 13,589,367.66, 18,757,005.03 and 8,012,478.78 is: 11,059,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589,367.66 : 18,757,005.03 = 8,012,478.78 : x
  2. Step 2: Convert to fraction form
    13,589,367.66/18,757,005.03 = 8,012,478.78/x
  3. Step 3: Cross multiply
    13,589,367.66x = 18,757,005.03 × 8,012,478.78
  4. Step 4: Simplify right side
    13,589,367.66x = 150,290,104,779,228.28
  5. Step 5: Solve for x
    x = 150,290,104,779,228.28/13,589,367.66
  6. Step 6: Final answer
    x = 11,059,389.12

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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.