Home / 209,201,418.27-313,802,125.89-76,264,243.92

Finding the Fourth Proportional to 209,201,418.27, 313,802,125.89 and 76,264,243.92

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Solution

The fourth proportional to 209,201,418.27, 313,802,125.89 and 76,264,243.92 is: 114,396,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,201,418.27 : 313,802,125.89 = 76,264,243.92 : x
  2. Step 2: Convert to fraction form
    209,201,418.27/313,802,125.89 = 76,264,243.92/x
  3. Step 3: Cross multiply
    209,201,418.27x = 313,802,125.89 × 76,264,243.92
  4. Step 4: Simplify right side
    209,201,418.27x = 23,931,881,871,489,508
  5. Step 5: Solve for x
    x = 23,931,881,871,489,508/209,201,418.27
  6. Step 6: Final answer
    x = 114,396,365.33

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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.