Home / 279,938,343.60-419,907,515.40-177,397,786.80

Finding the Fourth Proportional to 279,938,343.60, 419,907,515.40 and 177,397,786.80

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Solution

The fourth proportional to 279,938,343.60, 419,907,515.40 and 177,397,786.80 is: 266,096,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,343.60 : 419,907,515.40 = 177,397,786.80 : x
  2. Step 2: Convert to fraction form
    279,938,343.60/419,907,515.40 = 177,397,786.80/x
  3. Step 3: Cross multiply
    279,938,343.60x = 419,907,515.40 × 177,397,786.80
  4. Step 4: Simplify right side
    279,938,343.60x = 74,490,663,892,646,912
  5. Step 5: Solve for x
    x = 74,490,663,892,646,912/279,938,343.60
  6. Step 6: Final answer
    x = 266,096,680.20

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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.