Home / 66,215,101.20-99,322,651.80-18,346,045.20

Finding the Fourth Proportional to 66,215,101.20, 99,322,651.80 and 18,346,045.20

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Solution

The fourth proportional to 66,215,101.20, 99,322,651.80 and 18,346,045.20 is: 27,519,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,215,101.20 : 99,322,651.80 = 18,346,045.20 : x
  2. Step 2: Convert to fraction form
    66,215,101.20/99,322,651.80 = 18,346,045.20/x
  3. Step 3: Cross multiply
    66,215,101.20x = 99,322,651.80 × 18,346,045.20
  4. Step 4: Simplify right side
    66,215,101.20x = 1,822,177,859,306,661.25
  5. Step 5: Solve for x
    x = 1,822,177,859,306,661.25/66,215,101.20
  6. Step 6: Final answer
    x = 27,519,067.80

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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.