Home / 87,066,471.48-120,148,128.18-47,374,165.52

Finding the Fourth Proportional to 87,066,471.48, 120,148,128.18 and 47,374,165.52

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Solution

The fourth proportional to 87,066,471.48, 120,148,128.18 and 47,374,165.52 is: 65,374,388.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,066,471.48 : 120,148,128.18 = 47,374,165.52 : x
  2. Step 2: Convert to fraction form
    87,066,471.48/120,148,128.18 = 47,374,165.52/x
  3. Step 3: Cross multiply
    87,066,471.48x = 120,148,128.18 × 47,374,165.52
  4. Step 4: Simplify right side
    87,066,471.48x = 5,691,917,310,716,756
  5. Step 5: Solve for x
    x = 5,691,917,310,716,756/87,066,471.48
  6. Step 6: Final answer
    x = 65,374,388.26

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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.