Home / 756,441,467.52-1,135,006,962.72-388,234,990

Finding the Fourth Proportional to 756,441,467.52, 1,135,006,962.72 and 388,234,990

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Solution

The fourth proportional to 756,441,467.52, 1,135,006,962.72 and 388,234,990 is: 582,529,429.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,441,467.52 : 1,135,006,962.72 = 388,234,990 : x
  2. Step 2: Convert to fraction form
    756,441,467.52/1,135,006,962.72 = 388,234,990/x
  3. Step 3: Cross multiply
    756,441,467.52x = 1,135,006,962.72 × 388,234,990
  4. Step 4: Simplify right side
    756,441,467.52x = 440,649,416,821,529,600
  5. Step 5: Solve for x
    x = 440,649,416,821,529,600/756,441,467.52
  6. Step 6: Final answer
    x = 582,529,429.89

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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.