Home / 76,768,389.70-115,172,752.32-27,589,208.38

Finding the Fourth Proportional to 76,768,389.70, 115,172,752.32 and 27,589,208.38

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Solution

The fourth proportional to 76,768,389.70, 115,172,752.32 and 27,589,208.38 is: 41,391,060.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,768,389.70 : 115,172,752.32 = 27,589,208.38 : x
  2. Step 2: Convert to fraction form
    76,768,389.70/115,172,752.32 = 27,589,208.38/x
  3. Step 3: Cross multiply
    76,768,389.70x = 115,172,752.32 × 27,589,208.38
  4. Step 4: Simplify right side
    76,768,389.70x = 3,177,525,063,454,608
  5. Step 5: Solve for x
    x = 3,177,525,063,454,608/76,768,389.70
  6. Step 6: Final answer
    x = 41,391,060.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.