Home / 279,661,961.80-419,492,942.70-177,877,232.20

Finding the Fourth Proportional to 279,661,961.80, 419,492,942.70 and 177,877,232.20

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Solution

The fourth proportional to 279,661,961.80, 419,492,942.70 and 177,877,232.20 is: 266,815,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,661,961.80 : 419,492,942.70 = 177,877,232.20 : x
  2. Step 2: Convert to fraction form
    279,661,961.80/419,492,942.70 = 177,877,232.20/x
  3. Step 3: Cross multiply
    279,661,961.80x = 419,492,942.70 × 177,877,232.20
  4. Step 4: Simplify right side
    279,661,961.80x = 74,618,243,574,909,184
  5. Step 5: Solve for x
    x = 74,618,243,574,909,184/279,661,961.80
  6. Step 6: Final answer
    x = 266,815,848.30

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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.