Home / 66,901,431.42-100,354,868.49-31,868,536.38

Finding the Fourth Proportional to 66,901,431.42, 100,354,868.49 and 31,868,536.38

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Solution

The fourth proportional to 66,901,431.42, 100,354,868.49 and 31,868,536.38 is: 47,804,100.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,901,431.42 : 100,354,868.49 = 31,868,536.38 : x
  2. Step 2: Convert to fraction form
    66,901,431.42/100,354,868.49 = 31,868,536.38/x
  3. Step 3: Cross multiply
    66,901,431.42x = 100,354,868.49 × 31,868,536.38
  4. Step 4: Simplify right side
    66,901,431.42x = 3,198,162,777,383,680.50
  5. Step 5: Solve for x
    x = 3,198,162,777,383,680.50/66,901,431.42
  6. Step 6: Final answer
    x = 47,804,100.89

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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.