Home / 419,904,819.10-629,857,228.65-417,353,902.30

Finding the Fourth Proportional to 419,904,819.10, 629,857,228.65 and 417,353,902.30

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Solution

The fourth proportional to 419,904,819.10, 629,857,228.65 and 417,353,902.30 is: 626,030,853.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,904,819.10 : 629,857,228.65 = 417,353,902.30 : x
  2. Step 2: Convert to fraction form
    419,904,819.10/629,857,228.65 = 417,353,902.30/x
  3. Step 3: Cross multiply
    419,904,819.10x = 629,857,228.65 × 417,353,902.30
  4. Step 4: Simplify right side
    419,904,819.10x = 262,873,372,268,940,864
  5. Step 5: Solve for x
    x = 262,873,372,268,940,864/419,904,819.10
  6. Step 6: Final answer
    x = 626,030,853.45

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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.