Home / 252,079,321.60-378,118,982.40-209,032,600.60

Finding the Fourth Proportional to 252,079,321.60, 378,118,982.40 and 209,032,600.60

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Solution

The fourth proportional to 252,079,321.60, 378,118,982.40 and 209,032,600.60 is: 313,548,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,079,321.60 : 378,118,982.40 = 209,032,600.60 : x
  2. Step 2: Convert to fraction form
    252,079,321.60/378,118,982.40 = 209,032,600.60/x
  3. Step 3: Cross multiply
    252,079,321.60x = 378,118,982.40 × 209,032,600.60
  4. Step 4: Simplify right side
    252,079,321.60x = 79,039,194,227,297,616
  5. Step 5: Solve for x
    x = 79,039,194,227,297,616/252,079,321.60
  6. Step 6: Final answer
    x = 313,548,900.90

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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.