Home / 13,215,156-18,236,921.91-7,334,792.64

Finding the Fourth Proportional to 13,215,156, 18,236,921.91 and 7,334,792.64

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Solution

The fourth proportional to 13,215,156, 18,236,921.91 and 7,334,792.64 is: 10,122,017.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,156 : 18,236,921.91 = 7,334,792.64 : x
  2. Step 2: Convert to fraction form
    13,215,156/18,236,921.91 = 7,334,792.64/x
  3. Step 3: Cross multiply
    13,215,156x = 18,236,921.91 × 7,334,792.64
  4. Step 4: Simplify right side
    13,215,156x = 133,764,040,601,722.73
  5. Step 5: Solve for x
    x = 133,764,040,601,722.73/13,215,156
  6. Step 6: Final answer
    x = 10,122,017.52

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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.