Home / 143,231,019.36-214,693,566.12-81,687,660.41

Finding the Fourth Proportional to 143,231,019.36, 214,693,566.12 and 81,687,660.41

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Solution

The fourth proportional to 143,231,019.36, 214,693,566.12 and 81,687,660.41 is: 122,444,252.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,231,019.36 : 214,693,566.12 = 81,687,660.41 : x
  2. Step 2: Convert to fraction form
    143,231,019.36/214,693,566.12 = 81,687,660.41/x
  3. Step 3: Cross multiply
    143,231,019.36x = 214,693,566.12 × 81,687,660.41
  4. Step 4: Simplify right side
    143,231,019.36x = 17,537,815,120,348,974
  5. Step 5: Solve for x
    x = 17,537,815,120,348,974/143,231,019.36
  6. Step 6: Final answer
    x = 122,444,252.64

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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.