Home / 87,486,378.70-120,732,215.80-48,327,344.22

Finding the Fourth Proportional to 87,486,378.70, 120,732,215.80 and 48,327,344.22

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Solution

The fourth proportional to 87,486,378.70, 120,732,215.80 and 48,327,344.22 is: 66,692,294.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,486,378.70 : 120,732,215.80 = 48,327,344.22 : x
  2. Step 2: Convert to fraction form
    87,486,378.70/120,732,215.80 = 48,327,344.22/x
  3. Step 3: Cross multiply
    87,486,378.70x = 120,732,215.80 × 48,327,344.22
  4. Step 4: Simplify right side
    87,486,378.70x = 5,834,667,351,409,922
  5. Step 5: Solve for x
    x = 5,834,667,351,409,922/87,486,378.70
  6. Step 6: Final answer
    x = 66,692,294.71

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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.