Home / 209,163,282.15-313,783,229.97-86,274,562.36

Finding the Fourth Proportional to 209,163,282.15, 313,783,229.97 and 86,274,562.36

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Solution

The fourth proportional to 209,163,282.15, 313,783,229.97 and 86,274,562.36 is: 129,427,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,163,282.15 : 313,783,229.97 = 86,274,562.36 : x
  2. Step 2: Convert to fraction form
    209,163,282.15/313,783,229.97 = 86,274,562.36/x
  3. Step 3: Cross multiply
    209,163,282.15x = 313,783,229.97 × 86,274,562.36
  4. Step 4: Simplify right side
    209,163,282.15x = 27,071,510,841,568,988
  5. Step 5: Solve for x
    x = 27,071,510,841,568,988/209,163,282.15
  6. Step 6: Final answer
    x = 129,427,644.10

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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.