Home / 419,904,564.80-629,856,847.20-147,239,902.40

Finding the Fourth Proportional to 419,904,564.80, 629,856,847.20 and 147,239,902.40

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Solution

The fourth proportional to 419,904,564.80, 629,856,847.20 and 147,239,902.40 is: 220,859,853.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,564.80 : 629,856,847.20 = 147,239,902.40 : x
  2. Step 2: Convert to fraction form
    419,904,564.80/629,856,847.20 = 147,239,902.40/x
  3. Step 3: Cross multiply
    419,904,564.80x = 629,856,847.20 × 147,239,902.40
  4. Step 4: Simplify right side
    419,904,564.80x = 92,740,060,707,699,728
  5. Step 5: Solve for x
    x = 92,740,060,707,699,728/419,904,564.80
  6. Step 6: Final answer
    x = 220,859,853.60

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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.