Home / 143,508,120.96-198,047,646.32-80,805,781.20

Finding the Fourth Proportional to 143,508,120.96, 198,047,646.32 and 80,805,781.20

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Solution

The fourth proportional to 143,508,120.96, 198,047,646.32 and 80,805,781.20 is: 111,515,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,508,120.96 : 198,047,646.32 = 80,805,781.20 : x
  2. Step 2: Convert to fraction form
    143,508,120.96/198,047,646.32 = 80,805,781.20/x
  3. Step 3: Cross multiply
    143,508,120.96x = 198,047,646.32 × 80,805,781.20
  4. Step 4: Simplify right side
    143,508,120.96x = 16,003,394,775,708,906
  5. Step 5: Solve for x
    x = 16,003,394,775,708,906/143,508,120.96
  6. Step 6: Final answer
    x = 111,515,603.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.