Home / 279,938,418.90-419,907,628.35-254,429,250.90

Finding the Fourth Proportional to 279,938,418.90, 419,907,628.35 and 254,429,250.90

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Solution

The fourth proportional to 279,938,418.90, 419,907,628.35 and 254,429,250.90 is: 381,643,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,418.90 : 419,907,628.35 = 254,429,250.90 : x
  2. Step 2: Convert to fraction form
    279,938,418.90/419,907,628.35 = 254,429,250.90/x
  3. Step 3: Cross multiply
    279,938,418.90x = 419,907,628.35 × 254,429,250.90
  4. Step 4: Simplify right side
    279,938,418.90x = 106,836,783,328,286,112
  5. Step 5: Solve for x
    x = 106,836,783,328,286,112/279,938,418.90
  6. Step 6: Final answer
    x = 381,643,876.35

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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.