Home / 279,765,554.40-419,648,331.60-198,136,216.80

Finding the Fourth Proportional to 279,765,554.40, 419,648,331.60 and 198,136,216.80

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Solution

The fourth proportional to 279,765,554.40, 419,648,331.60 and 198,136,216.80 is: 297,204,325.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,765,554.40 : 419,648,331.60 = 198,136,216.80 : x
  2. Step 2: Convert to fraction form
    279,765,554.40/419,648,331.60 = 198,136,216.80/x
  3. Step 3: Cross multiply
    279,765,554.40x = 419,648,331.60 × 198,136,216.80
  4. Step 4: Simplify right side
    279,765,554.40x = 83,147,532,809,655,904
  5. Step 5: Solve for x
    x = 83,147,532,809,655,904/279,765,554.40
  6. Step 6: Final answer
    x = 297,204,325.20

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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.