Home / 21,290,912.50-29,381,459.25-11,633,120.50

Finding the Fourth Proportional to 21,290,912.50, 29,381,459.25 and 11,633,120.50

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Solution

The fourth proportional to 21,290,912.50, 29,381,459.25 and 11,633,120.50 is: 16,053,706.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,912.50 : 29,381,459.25 = 11,633,120.50 : x
  2. Step 2: Convert to fraction form
    21,290,912.50/29,381,459.25 = 11,633,120.50/x
  3. Step 3: Cross multiply
    21,290,912.50x = 29,381,459.25 × 11,633,120.50
  4. Step 4: Simplify right side
    21,290,912.50x = 341,798,055,921,089.62
  5. Step 5: Solve for x
    x = 341,798,055,921,089.62/21,290,912.50
  6. Step 6: Final answer
    x = 16,053,706.29

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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.