Home / 38,910,622.86-53,695,722.96-21,268,733.49

Finding the Fourth Proportional to 38,910,622.86, 53,695,722.96 and 21,268,733.49

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Solution

The fourth proportional to 38,910,622.86, 53,695,722.96 and 21,268,733.49 is: 29,350,340.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,910,622.86 : 53,695,722.96 = 21,268,733.49 : x
  2. Step 2: Convert to fraction form
    38,910,622.86/53,695,722.96 = 21,268,733.49/x
  3. Step 3: Cross multiply
    38,910,622.86x = 53,695,722.96 × 21,268,733.49
  4. Step 4: Simplify right side
    38,910,622.86x = 1,142,040,021,189,113.75
  5. Step 5: Solve for x
    x = 1,142,040,021,189,113.75/38,910,622.86
  6. Step 6: Final answer
    x = 29,350,340.27

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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.