Home / 13,702,241.15-18,906,689.46-7,819,189.28

Finding the Fourth Proportional to 13,702,241.15, 18,906,689.46 and 7,819,189.28

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Solution

The fourth proportional to 13,702,241.15, 18,906,689.46 and 7,819,189.28 is: 10,789,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702,241.15 : 18,906,689.46 = 7,819,189.28 : x
  2. Step 2: Convert to fraction form
    13,702,241.15/18,906,689.46 = 7,819,189.28/x
  3. Step 3: Cross multiply
    13,702,241.15x = 18,906,689.46 × 7,819,189.28
  4. Step 4: Simplify right side
    13,702,241.15x = 147,834,983,451,387.56
  5. Step 5: Solve for x
    x = 147,834,983,451,387.56/13,702,241.15
  6. Step 6: Final answer
    x = 10,789,109.74

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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.