Home / 419,906,073.20-630,174,037.80-215,328,844.40

Finding the Fourth Proportional to 419,906,073.20, 630,174,037.80 and 215,328,844.40

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Solution

The fourth proportional to 419,906,073.20, 630,174,037.80 and 215,328,844.40 is: 323,154,762.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,906,073.20 : 630,174,037.80 = 215,328,844.40 : x
  2. Step 2: Convert to fraction form
    419,906,073.20/630,174,037.80 = 215,328,844.40/x
  3. Step 3: Cross multiply
    419,906,073.20x = 630,174,037.80 × 215,328,844.40
  4. Step 4: Simplify right side
    419,906,073.20x = 135,694,647,330,355,904
  5. Step 5: Solve for x
    x = 135,694,647,330,355,904/419,906,073.20
  6. Step 6: Final answer
    x = 323,154,762.44

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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.