Home / 398,705,957.01-598,056,425.94-214,560,174.30

Finding the Fourth Proportional to 398,705,957.01, 598,056,425.94 and 214,560,174.30

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Solution

The fourth proportional to 398,705,957.01, 598,056,425.94 and 214,560,174.30 is: 321,838,910.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,705,957.01 : 598,056,425.94 = 214,560,174.30 : x
  2. Step 2: Convert to fraction form
    398,705,957.01/598,056,425.94 = 214,560,174.30/x
  3. Step 3: Cross multiply
    398,705,957.01x = 598,056,425.94 × 214,560,174.30
  4. Step 4: Simplify right side
    398,705,957.01x = 128,319,090,990,921,456
  5. Step 5: Solve for x
    x = 128,319,090,990,921,456/398,705,957.01
  6. Step 6: Final answer
    x = 321,838,910.94

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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.