Home / 87,040,314.09-120,111,846.44-47,879,607.78

Finding the Fourth Proportional to 87,040,314.09, 120,111,846.44 and 47,879,607.78

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Solution

The fourth proportional to 87,040,314.09, 120,111,846.44 and 47,879,607.78 is: 66,071,775.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,040,314.09 : 120,111,846.44 = 47,879,607.78 : x
  2. Step 2: Convert to fraction form
    87,040,314.09/120,111,846.44 = 47,879,607.78/x
  3. Step 3: Cross multiply
    87,040,314.09x = 120,111,846.44 × 47,879,607.78
  4. Step 4: Simplify right side
    87,040,314.09x = 5,750,908,097,039,392
  5. Step 5: Solve for x
    x = 5,750,908,097,039,392/87,040,314.09
  6. Step 6: Final answer
    x = 66,071,775.56

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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.