Home / 664,288,099.80-996,432,149.70-480,622,090.20

Finding the Fourth Proportional to 664,288,099.80, 996,432,149.70 and 480,622,090.20

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Solution

The fourth proportional to 664,288,099.80, 996,432,149.70 and 480,622,090.20 is: 720,933,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,288,099.80 : 996,432,149.70 = 480,622,090.20 : x
  2. Step 2: Convert to fraction form
    664,288,099.80/996,432,149.70 = 480,622,090.20/x
  3. Step 3: Cross multiply
    664,288,099.80x = 996,432,149.70 × 480,622,090.20
  4. Step 4: Simplify right side
    664,288,099.80x = 478,907,302,531,293,312
  5. Step 5: Solve for x
    x = 478,907,302,531,293,312/664,288,099.80
  6. Step 6: Final answer
    x = 720,933,135.30

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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.