Home / 143,915,253.57-198,603,047.88-77,835,757.59

Finding the Fourth Proportional to 143,915,253.57, 198,603,047.88 and 77,835,757.59

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Solution

The fourth proportional to 143,915,253.57, 198,603,047.88 and 77,835,757.59 is: 107,413,344.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,915,253.57 : 198,603,047.88 = 77,835,757.59 : x
  2. Step 2: Convert to fraction form
    143,915,253.57/198,603,047.88 = 77,835,757.59/x
  3. Step 3: Cross multiply
    143,915,253.57x = 198,603,047.88 × 77,835,757.59
  4. Step 4: Simplify right side
    143,915,253.57x = 15,458,418,691,422,844
  5. Step 5: Solve for x
    x = 15,458,418,691,422,844/143,915,253.57
  6. Step 6: Final answer
    x = 107,413,344.37

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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.