Home / 664,012,842.40-996,168,562.80-203,972,240.80

Finding the Fourth Proportional to 664,012,842.40, 996,168,562.80 and 203,972,240.80

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Solution

The fourth proportional to 664,012,842.40, 996,168,562.80 and 203,972,240.80 is: 306,004,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,012,842.40 : 996,168,562.80 = 203,972,240.80 : x
  2. Step 2: Convert to fraction form
    664,012,842.40/996,168,562.80 = 203,972,240.80/x
  3. Step 3: Cross multiply
    664,012,842.40x = 996,168,562.80 × 203,972,240.80
  4. Step 4: Simplify right side
    664,012,842.40x = 203,190,733,968,831,520
  5. Step 5: Solve for x
    x = 203,190,733,968,831,520/664,012,842.40
  6. Step 6: Final answer
    x = 306,004,223.10

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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.