Home / 66,864,160.80-100,288,361.52-18,346,920.48

Finding the Fourth Proportional to 66,864,160.80, 100,288,361.52 and 18,346,920.48

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Solution

The fourth proportional to 66,864,160.80, 100,288,361.52 and 18,346,920.48 is: 27,518,218.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864,160.80 : 100,288,361.52 = 18,346,920.48 : x
  2. Step 2: Convert to fraction form
    66,864,160.80/100,288,361.52 = 18,346,920.48/x
  3. Step 3: Cross multiply
    66,864,160.80x = 100,288,361.52 × 18,346,920.48
  4. Step 4: Simplify right side
    66,864,160.80x = 1,839,982,593,876,932
  5. Step 5: Solve for x
    x = 1,839,982,593,876,932/66,864,160.80
  6. Step 6: Final answer
    x = 27,518,218.61

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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.