Home / 143,915,265.82-198,603,064.79-77,835,769.84

Finding the Fourth Proportional to 143,915,265.82, 198,603,064.79 and 77,835,769.84

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Solution

The fourth proportional to 143,915,265.82, 198,603,064.79 and 77,835,769.84 is: 107,413,361.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,915,265.82 : 198,603,064.79 = 77,835,769.84 : x
  2. Step 2: Convert to fraction form
    143,915,265.82/198,603,064.79 = 77,835,769.84/x
  3. Step 3: Cross multiply
    143,915,265.82x = 198,603,064.79 × 77,835,769.84
  4. Step 4: Simplify right side
    143,915,265.82x = 15,458,422,440,513,048
  5. Step 5: Solve for x
    x = 15,458,422,440,513,048/143,915,265.82
  6. Step 6: Final answer
    x = 107,413,361.28

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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.