Home / 71,861,428.50-107,793,006.60-20,042,877

Finding the Fourth Proportional to 71,861,428.50, 107,793,006.60 and 20,042,877

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Solution

The fourth proportional to 71,861,428.50, 107,793,006.60 and 20,042,877 is: 30,064,556.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,861,428.50 : 107,793,006.60 = 20,042,877 : x
  2. Step 2: Convert to fraction form
    71,861,428.50/107,793,006.60 = 20,042,877/x
  3. Step 3: Cross multiply
    71,861,428.50x = 107,793,006.60 × 20,042,877
  4. Step 4: Simplify right side
    71,861,428.50x = 2,160,481,972,743,988
  5. Step 5: Solve for x
    x = 2,160,481,972,743,988/71,861,428.50
  6. Step 6: Final answer
    x = 30,064,556.44

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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.