Home / 21,711,942.57-29,963,001.30-11,789,243.46

Finding the Fourth Proportional to 21,711,942.57, 29,963,001.30 and 11,789,243.46

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Solution

The fourth proportional to 21,711,942.57, 29,963,001.30 and 11,789,243.46 is: 16,269,438.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711,942.57 : 29,963,001.30 = 11,789,243.46 : x
  2. Step 2: Convert to fraction form
    21,711,942.57/29,963,001.30 = 11,789,243.46/x
  3. Step 3: Cross multiply
    21,711,942.57x = 29,963,001.30 × 11,789,243.46
  4. Step 4: Simplify right side
    21,711,942.57x = 353,241,117,117,996.56
  5. Step 5: Solve for x
    x = 353,241,117,117,996.56/21,711,942.57
  6. Step 6: Final answer
    x = 16,269,438.63

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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.