Home / 132,815,999.80-199,223,999.70-81,531,724.60

Finding the Fourth Proportional to 132,815,999.80, 199,223,999.70 and 81,531,724.60

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Solution

The fourth proportional to 132,815,999.80, 199,223,999.70 and 81,531,724.60 is: 122,297,586.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,815,999.80 : 199,223,999.70 = 81,531,724.60 : x
  2. Step 2: Convert to fraction form
    132,815,999.80/199,223,999.70 = 81,531,724.60/x
  3. Step 3: Cross multiply
    132,815,999.80x = 199,223,999.70 × 81,531,724.60
  4. Step 4: Simplify right side
    132,815,999.80x = 16,243,076,277,250,880
  5. Step 5: Solve for x
    x = 16,243,076,277,250,880/132,815,999.80
  6. Step 6: Final answer
    x = 122,297,586.90

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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.