Home / 66,427,067.70-99,640,601.55-52,990,139.70

Finding the Fourth Proportional to 66,427,067.70, 99,640,601.55 and 52,990,139.70

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Solution

The fourth proportional to 66,427,067.70, 99,640,601.55 and 52,990,139.70 is: 79,485,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,427,067.70 : 99,640,601.55 = 52,990,139.70 : x
  2. Step 2: Convert to fraction form
    66,427,067.70/99,640,601.55 = 52,990,139.70/x
  3. Step 3: Cross multiply
    66,427,067.70x = 99,640,601.55 × 52,990,139.70
  4. Step 4: Simplify right side
    66,427,067.70x = 5,279,969,395,926,537
  5. Step 5: Solve for x
    x = 5,279,969,395,926,537/66,427,067.70
  6. Step 6: Final answer
    x = 79,485,209.55

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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.