Home / 135,886,474.35-187,525,491.89-77,147,940.87

Finding the Fourth Proportional to 135,886,474.35, 187,525,491.89 and 77,147,940.87

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Solution

The fourth proportional to 135,886,474.35, 187,525,491.89 and 77,147,940.87 is: 106,465,383.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,886,474.35 : 187,525,491.89 = 77,147,940.87 : x
  2. Step 2: Convert to fraction form
    135,886,474.35/187,525,491.89 = 77,147,940.87/x
  3. Step 3: Cross multiply
    135,886,474.35x = 187,525,491.89 × 77,147,940.87
  4. Step 4: Simplify right side
    135,886,474.35x = 14,467,205,559,561,644
  5. Step 5: Solve for x
    x = 14,467,205,559,561,644/135,886,474.35
  6. Step 6: Final answer
    x = 106,465,383.17

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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.