Home / 419,904,824.80-629,857,237.20-147,240,162.40

Finding the Fourth Proportional to 419,904,824.80, 629,857,237.20 and 147,240,162.40

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Solution

The fourth proportional to 419,904,824.80, 629,857,237.20 and 147,240,162.40 is: 220,860,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,824.80 : 629,857,237.20 = 147,240,162.40 : x
  2. Step 2: Convert to fraction form
    419,904,824.80/629,857,237.20 = 147,240,162.40/x
  3. Step 3: Cross multiply
    419,904,824.80x = 629,857,237.20 × 147,240,162.40
  4. Step 4: Simplify right side
    419,904,824.80x = 92,740,281,894,143,328
  5. Step 5: Solve for x
    x = 92,740,281,894,143,328/419,904,824.80
  6. Step 6: Final answer
    x = 220,860,243.60

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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.