Home / 28,722,471.48-39,635,628.90-15,668,951.91

Finding the Fourth Proportional to 28,722,471.48, 39,635,628.90 and 15,668,951.91

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Solution

The fourth proportional to 28,722,471.48, 39,635,628.90 and 15,668,951.91 is: 21,622,399.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,722,471.48 : 39,635,628.90 = 15,668,951.91 : x
  2. Step 2: Convert to fraction form
    28,722,471.48/39,635,628.90 = 15,668,951.91/x
  3. Step 3: Cross multiply
    28,722,471.48x = 39,635,628.90 × 15,668,951.91
  4. Step 4: Simplify right side
    28,722,471.48x = 621,048,763,156,706.12
  5. Step 5: Solve for x
    x = 621,048,763,156,706.12/28,722,471.48
  6. Step 6: Final answer
    x = 21,622,399.85

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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.