Home / 135,886,469.09-187,525,484.63-77,147,935.61

Finding the Fourth Proportional to 135,886,469.09, 187,525,484.63 and 77,147,935.61

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Solution

The fourth proportional to 135,886,469.09, 187,525,484.63 and 77,147,935.61 is: 106,465,375.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,886,469.09 : 187,525,484.63 = 77,147,935.61 : x
  2. Step 2: Convert to fraction form
    135,886,469.09/187,525,484.63 = 77,147,935.61/x
  3. Step 3: Cross multiply
    135,886,469.09x = 187,525,484.63 × 77,147,935.61
  4. Step 4: Simplify right side
    135,886,469.09x = 14,467,204,012,145,918
  5. Step 5: Solve for x
    x = 14,467,204,012,145,918/135,886,469.09
  6. Step 6: Final answer
    x = 106,465,375.91

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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.