Home / 543,201,405.40-814,802,108.10-198,166,288.60

Finding the Fourth Proportional to 543,201,405.40, 814,802,108.10 and 198,166,288.60

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Solution

The fourth proportional to 543,201,405.40, 814,802,108.10 and 198,166,288.60 is: 297,249,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,201,405.40 : 814,802,108.10 = 198,166,288.60 : x
  2. Step 2: Convert to fraction form
    543,201,405.40/814,802,108.10 = 198,166,288.60/x
  3. Step 3: Cross multiply
    543,201,405.40x = 814,802,108.10 × 198,166,288.60
  4. Step 4: Simplify right side
    543,201,405.40x = 161,466,309,705,632,992
  5. Step 5: Solve for x
    x = 161,466,309,705,632,992/543,201,405.40
  6. Step 6: Final answer
    x = 297,249,432.90

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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.