Home / 143,231,067.98-214,693,638.66-81,687,708.86

Finding the Fourth Proportional to 143,231,067.98, 214,693,638.66 and 81,687,708.86

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Solution

The fourth proportional to 143,231,067.98, 214,693,638.66 and 81,687,708.86 is: 122,444,325.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,231,067.98 : 214,693,638.66 = 81,687,708.86 : x
  2. Step 2: Convert to fraction form
    143,231,067.98/214,693,638.66 = 81,687,708.86/x
  3. Step 3: Cross multiply
    143,231,067.98x = 214,693,638.66 × 81,687,708.86
  4. Step 4: Simplify right side
    143,231,067.98x = 17,537,831,448,952,120
  5. Step 5: Solve for x
    x = 17,537,831,448,952,120/143,231,067.98
  6. Step 6: Final answer
    x = 122,444,325.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.