Home / 20,724,982.79-31,072,121.44-9,932,006.57

Finding the Fourth Proportional to 20,724,982.79, 31,072,121.44 and 9,932,006.57

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Solution

The fourth proportional to 20,724,982.79, 31,072,121.44 and 9,932,006.57 is: 14,890,652.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724,982.79 : 31,072,121.44 = 9,932,006.57 : x
  2. Step 2: Convert to fraction form
    20,724,982.79/31,072,121.44 = 9,932,006.57/x
  3. Step 3: Cross multiply
    20,724,982.79x = 31,072,121.44 × 9,932,006.57
  4. Step 4: Simplify right side
    20,724,982.79x = 308,608,514,105,727.25
  5. Step 5: Solve for x
    x = 308,608,514,105,727.25/20,724,982.79
  6. Step 6: Final answer
    x = 14,890,652.37

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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.