Home / 12,826,172.97-17,700,405.10-7,319,438.19

Finding the Fourth Proportional to 12,826,172.97, 17,700,405.10 and 7,319,438.19

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Solution

The fourth proportional to 12,826,172.97, 17,700,405.10 and 7,319,438.19 is: 10,100,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,826,172.97 : 17,700,405.10 = 7,319,438.19 : x
  2. Step 2: Convert to fraction form
    12,826,172.97/17,700,405.10 = 7,319,438.19/x
  3. Step 3: Cross multiply
    12,826,172.97x = 17,700,405.10 × 7,319,438.19
  4. Step 4: Simplify right side
    12,826,172.97x = 129,557,021,049,112.19
  5. Step 5: Solve for x
    x = 129,557,021,049,112.19/12,826,172.97
  6. Step 6: Final answer
    x = 10,100,988.14

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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.