Home / 72,939,273.56-100,656,996.13-39,899,523.01

Finding the Fourth Proportional to 72,939,273.56, 100,656,996.13 and 39,899,523.01

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Solution

The fourth proportional to 72,939,273.56, 100,656,996.13 and 39,899,523.01 is: 55,061,778.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,939,273.56 : 100,656,996.13 = 39,899,523.01 : x
  2. Step 2: Convert to fraction form
    72,939,273.56/100,656,996.13 = 39,899,523.01/x
  3. Step 3: Cross multiply
    72,939,273.56x = 100,656,996.13 × 39,899,523.01
  4. Step 4: Simplify right side
    72,939,273.56x = 4,016,166,133,193,379.50
  5. Step 5: Solve for x
    x = 4,016,166,133,193,379.50/72,939,273.56
  6. Step 6: Final answer
    x = 55,061,778.62

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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.