Home / 66,429,999.20-99,660,745.20-34,086,893.60

Finding the Fourth Proportional to 66,429,999.20, 99,660,745.20 and 34,086,893.60

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Solution

The fourth proportional to 66,429,999.20, 99,660,745.20 and 34,086,893.60 is: 51,138,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,999.20 : 99,660,745.20 = 34,086,893.60 : x
  2. Step 2: Convert to fraction form
    66,429,999.20/99,660,745.20 = 34,086,893.60/x
  3. Step 3: Cross multiply
    66,429,999.20x = 99,660,745.20 × 34,086,893.60
  4. Step 4: Simplify right side
    66,429,999.20x = 3,397,125,217,729,111
  5. Step 5: Solve for x
    x = 3,397,125,217,729,111/66,429,999.20
  6. Step 6: Final answer
    x = 51,138,420.27

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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.