Home / 13,809,325.22-20,719,961.13-7,412,104.18

Finding the Fourth Proportional to 13,809,325.22, 20,719,961.13 and 7,412,104.18

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Solution

The fourth proportional to 13,809,325.22, 20,719,961.13 and 7,412,104.18 is: 11,121,362.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809,325.22 : 20,719,961.13 = 7,412,104.18 : x
  2. Step 2: Convert to fraction form
    13,809,325.22/20,719,961.13 = 7,412,104.18/x
  3. Step 3: Cross multiply
    13,809,325.22x = 20,719,961.13 × 7,412,104.18
  4. Step 4: Simplify right side
    13,809,325.22x = 153,578,510,560,966.25
  5. Step 5: Solve for x
    x = 153,578,510,560,966.25/13,809,325.22
  6. Step 6: Final answer
    x = 11,121,362.42

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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.