Home / 66,921,648.20-100,482,005.10-51,792,662.60

Finding the Fourth Proportional to 66,921,648.20, 100,482,005.10 and 51,792,662.60

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Solution

The fourth proportional to 66,921,648.20, 100,482,005.10 and 51,792,662.60 is: 77,766,025.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,921,648.20 : 100,482,005.10 = 51,792,662.60 : x
  2. Step 2: Convert to fraction form
    66,921,648.20/100,482,005.10 = 51,792,662.60/x
  3. Step 3: Cross multiply
    66,921,648.20x = 100,482,005.10 × 51,792,662.60
  4. Step 4: Simplify right side
    66,921,648.20x = 5,204,230,587,515,779
  5. Step 5: Solve for x
    x = 5,204,230,587,515,779/66,921,648.20
  6. Step 6: Final answer
    x = 77,766,025.31

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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.