Home / 19,972,100.70-29,940,655.05-13,561,566.30

Finding the Fourth Proportional to 19,972,100.70, 29,940,655.05 and 13,561,566.30

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Solution

The fourth proportional to 19,972,100.70, 29,940,655.05 and 13,561,566.30 is: 20,330,469.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972,100.70 : 29,940,655.05 = 13,561,566.30 : x
  2. Step 2: Convert to fraction form
    19,972,100.70/29,940,655.05 = 13,561,566.30/x
  3. Step 3: Cross multiply
    19,972,100.70x = 29,940,655.05 × 13,561,566.30
  4. Step 4: Simplify right side
    19,972,100.70x = 406,042,178,526,004.88
  5. Step 5: Solve for x
    x = 406,042,178,526,004.88/19,972,100.70
  6. Step 6: Final answer
    x = 20,330,469.22

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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.