Home / 87,485,065.15-120,731,169.63-47,795,166.60

Finding the Fourth Proportional to 87,485,065.15, 120,731,169.63 and 47,795,166.60

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Solution

The fourth proportional to 87,485,065.15, 120,731,169.63 and 47,795,166.60 is: 65,958,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,485,065.15 : 120,731,169.63 = 47,795,166.60 : x
  2. Step 2: Convert to fraction form
    87,485,065.15/120,731,169.63 = 47,795,166.60/x
  3. Step 3: Cross multiply
    87,485,065.15x = 120,731,169.63 × 47,795,166.60
  4. Step 4: Simplify right side
    87,485,065.15x = 5,770,366,366,278,710
  5. Step 5: Solve for x
    x = 5,770,366,366,278,710/87,485,065.15
  6. Step 6: Final answer
    x = 65,958,302.21

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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.