Home / 13,122,447.20-19,683,670.80-11,925,720.80

Finding the Fourth Proportional to 13,122,447.20, 19,683,670.80 and 11,925,720.80

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Solution

The fourth proportional to 13,122,447.20, 19,683,670.80 and 11,925,720.80 is: 17,888,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,447.20 : 19,683,670.80 = 11,925,720.80 : x
  2. Step 2: Convert to fraction form
    13,122,447.20/19,683,670.80 = 11,925,720.80/x
  3. Step 3: Cross multiply
    13,122,447.20x = 19,683,670.80 × 11,925,720.80
  4. Step 4: Simplify right side
    13,122,447.20x = 234,741,962,279,912.66
  5. Step 5: Solve for x
    x = 234,741,962,279,912.66/13,122,447.20
  6. Step 6: Final answer
    x = 17,888,581.20

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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.