Home / 13,153,003.30-19,729,504.95-12,145,233.70

Finding the Fourth Proportional to 13,153,003.30, 19,729,504.95 and 12,145,233.70

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Solution

The fourth proportional to 13,153,003.30, 19,729,504.95 and 12,145,233.70 is: 18,217,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,153,003.30 : 19,729,504.95 = 12,145,233.70 : x
  2. Step 2: Convert to fraction form
    13,153,003.30/19,729,504.95 = 12,145,233.70/x
  3. Step 3: Cross multiply
    13,153,003.30x = 19,729,504.95 × 12,145,233.70
  4. Step 4: Simplify right side
    13,153,003.30x = 239,619,448,403,056.78
  5. Step 5: Solve for x
    x = 239,619,448,403,056.78/13,153,003.30
  6. Step 6: Final answer
    x = 18,217,850.55

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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.