Home / 420,633,105.60-630,949,658.40-248,192,529.60

Finding the Fourth Proportional to 420,633,105.60, 630,949,658.40 and 248,192,529.60

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Solution

The fourth proportional to 420,633,105.60, 630,949,658.40 and 248,192,529.60 is: 372,288,794.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,633,105.60 : 630,949,658.40 = 248,192,529.60 : x
  2. Step 2: Convert to fraction form
    420,633,105.60/630,949,658.40 = 248,192,529.60/x
  3. Step 3: Cross multiply
    420,633,105.60x = 630,949,658.40 × 248,192,529.60
  4. Step 4: Simplify right side
    420,633,105.60x = 156,596,991,768,551,872
  5. Step 5: Solve for x
    x = 156,596,991,768,551,872/420,633,105.60
  6. Step 6: Final answer
    x = 372,288,794.40

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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.