Home / 10,857,679-14,989,414.20-8,371,469.60

Finding the Fourth Proportional to 10,857,679, 14,989,414.20 and 8,371,469.60

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Solution

The fourth proportional to 10,857,679, 14,989,414.20 and 8,371,469.60 is: 11,557,113.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857,679 : 14,989,414.20 = 8,371,469.60 : x
  2. Step 2: Convert to fraction form
    10,857,679/14,989,414.20 = 8,371,469.60/x
  3. Step 3: Cross multiply
    10,857,679x = 14,989,414.20 × 8,371,469.60
  4. Step 4: Simplify right side
    10,857,679x = 125,483,425,297,108.31
  5. Step 5: Solve for x
    x = 125,483,425,297,108.31/10,857,679
  6. Step 6: Final answer
    x = 11,557,113.20

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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.