Home / 100,147,512.33-137,882,364.08-78,092,710.83

Finding the Fourth Proportional to 100,147,512.33, 137,882,364.08 and 78,092,710.83

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Solution

The fourth proportional to 100,147,512.33, 137,882,364.08 and 78,092,710.83 is: 107,517,474.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,147,512.33 : 137,882,364.08 = 78,092,710.83 : x
  2. Step 2: Convert to fraction form
    100,147,512.33/137,882,364.08 = 78,092,710.83/x
  3. Step 3: Cross multiply
    100,147,512.33x = 137,882,364.08 × 78,092,710.83
  4. Step 4: Simplify right side
    100,147,512.33x = 10,767,607,586,265,754
  5. Step 5: Solve for x
    x = 10,767,607,586,265,754/100,147,512.33
  6. Step 6: Final answer
    x = 107,517,474.33

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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.