Home / 279,662,016.30-419,493,024.45-177,877,286.70

Finding the Fourth Proportional to 279,662,016.30, 419,493,024.45 and 177,877,286.70

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Solution

The fourth proportional to 279,662,016.30, 419,493,024.45 and 177,877,286.70 is: 266,815,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,662,016.30 : 419,493,024.45 = 177,877,286.70 : x
  2. Step 2: Convert to fraction form
    279,662,016.30/419,493,024.45 = 177,877,286.70/x
  3. Step 3: Cross multiply
    279,662,016.30x = 419,493,024.45 × 177,877,286.70
  4. Step 4: Simplify right side
    279,662,016.30x = 74,618,280,978,742,752
  5. Step 5: Solve for x
    x = 74,618,280,978,742,752/279,662,016.30
  6. Step 6: Final answer
    x = 266,815,930.05

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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.