Home / 13,121,617.80-19,682,426.70-11,706,040.20

Finding the Fourth Proportional to 13,121,617.80, 19,682,426.70 and 11,706,040.20

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Solution

The fourth proportional to 13,121,617.80, 19,682,426.70 and 11,706,040.20 is: 17,559,060.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,121,617.80 : 19,682,426.70 = 11,706,040.20 : x
  2. Step 2: Convert to fraction form
    13,121,617.80/19,682,426.70 = 11,706,040.20/x
  3. Step 3: Cross multiply
    13,121,617.80x = 19,682,426.70 × 11,706,040.20
  4. Step 4: Simplify right side
    13,121,617.80x = 230,403,278,183,753.31
  5. Step 5: Solve for x
    x = 230,403,278,183,753.31/13,121,617.80
  6. Step 6: Final answer
    x = 17,559,060.30

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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.