Home / 66,428,850.20-99,624,612.90-21,004,568.60

Finding the Fourth Proportional to 66,428,850.20, 99,624,612.90 and 21,004,568.60

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Solution

The fourth proportional to 66,428,850.20, 99,624,612.90 and 21,004,568.60 is: 31,500,951.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,850.20 : 99,624,612.90 = 21,004,568.60 : x
  2. Step 2: Convert to fraction form
    66,428,850.20/99,624,612.90 = 21,004,568.60/x
  3. Step 3: Cross multiply
    66,428,850.20x = 99,624,612.90 × 21,004,568.60
  4. Step 4: Simplify right side
    66,428,850.20x = 2,092,572,015,906,495.25
  5. Step 5: Solve for x
    x = 2,092,572,015,906,495.25/66,428,850.20
  6. Step 6: Final answer
    x = 31,500,951.91

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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.