Home / 143,665,408.35-198,258,255.82-77,585,900.22

Finding the Fourth Proportional to 143,665,408.35, 198,258,255.82 and 77,585,900.22

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Solution

The fourth proportional to 143,665,408.35, 198,258,255.82 and 77,585,900.22 is: 107,068,538.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,665,408.35 : 198,258,255.82 = 77,585,900.22 : x
  2. Step 2: Convert to fraction form
    143,665,408.35/198,258,255.82 = 77,585,900.22/x
  3. Step 3: Cross multiply
    143,665,408.35x = 198,258,255.82 × 77,585,900.22
  4. Step 4: Simplify right side
    143,665,408.35x = 15,382,045,253,938,736
  5. Step 5: Solve for x
    x = 15,382,045,253,938,736/143,665,408.35
  6. Step 6: Final answer
    x = 107,068,538.14

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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.