Home / 21,160,640.91-31,740,677.60-5,807,912.43

Finding the Fourth Proportional to 21,160,640.91, 31,740,677.60 and 5,807,912.43

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Solution

The fourth proportional to 21,160,640.91, 31,740,677.60 and 5,807,912.43 is: 8,711,790.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,640.91 : 31,740,677.60 = 5,807,912.43 : x
  2. Step 2: Convert to fraction form
    21,160,640.91/31,740,677.60 = 5,807,912.43/x
  3. Step 3: Cross multiply
    21,160,640.91x = 31,740,677.60 × 5,807,912.43
  4. Step 4: Simplify right side
    21,160,640.91x = 184,347,076,019,974.69
  5. Step 5: Solve for x
    x = 184,347,076,019,974.69/21,160,640.91
  6. Step 6: Final answer
    x = 8,711,790.77

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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.