Home / 419,907,766.80-629,861,650.20-147,243,104.40

Finding the Fourth Proportional to 419,907,766.80, 629,861,650.20 and 147,243,104.40

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Solution

The fourth proportional to 419,907,766.80, 629,861,650.20 and 147,243,104.40 is: 220,864,656.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,907,766.80 : 629,861,650.20 = 147,243,104.40 : x
  2. Step 2: Convert to fraction form
    419,907,766.80/629,861,650.20 = 147,243,104.40/x
  3. Step 3: Cross multiply
    419,907,766.80x = 629,861,650.20 × 147,243,104.40
  4. Step 4: Simplify right side
    419,907,766.80x = 92,742,784,717,954,896
  5. Step 5: Solve for x
    x = 92,742,784,717,954,896/419,907,766.80
  6. Step 6: Final answer
    x = 220,864,656.60

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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.