Home / 8,663,490-11,928,912.12-7,694,937.36

Finding the Fourth Proportional to 8,663,490, 11,928,912.12 and 7,694,937.36

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Solution

The fourth proportional to 8,663,490, 11,928,912.12 and 7,694,937.36 is: 10,595,294.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663,490 : 11,928,912.12 = 7,694,937.36 : x
  2. Step 2: Convert to fraction form
    8,663,490/11,928,912.12 = 7,694,937.36/x
  3. Step 3: Cross multiply
    8,663,490x = 11,928,912.12 × 7,694,937.36
  4. Step 4: Simplify right side
    8,663,490x = 91,792,231,536,344.80
  5. Step 5: Solve for x
    x = 91,792,231,536,344.80/8,663,490
  6. Step 6: Final answer
    x = 10,595,294.91

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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.