Home / 144,770,006.20-199,784,028.36-78,690,463.60

Finding the Fourth Proportional to 144,770,006.20, 199,784,028.36 and 78,690,463.60

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Solution

The fourth proportional to 144,770,006.20, 199,784,028.36 and 78,690,463.60 is: 108,593,611.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,770,006.20 : 199,784,028.36 = 78,690,463.60 : x
  2. Step 2: Convert to fraction form
    144,770,006.20/199,784,028.36 = 78,690,463.60/x
  3. Step 3: Cross multiply
    144,770,006.20x = 199,784,028.36 × 78,690,463.60
  4. Step 4: Simplify right side
    144,770,006.20x = 15,721,097,811,523,948
  5. Step 5: Solve for x
    x = 15,721,097,811,523,948/144,770,006.20
  6. Step 6: Final answer
    x = 108,593,611.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.