Home / 279,938,414.90-419,907,622.35-256,129,858.10

Finding the Fourth Proportional to 279,938,414.90, 419,907,622.35 and 256,129,858.10

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Solution

The fourth proportional to 279,938,414.90, 419,907,622.35 and 256,129,858.10 is: 384,194,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,414.90 : 419,907,622.35 = 256,129,858.10 : x
  2. Step 2: Convert to fraction form
    279,938,414.90/419,907,622.35 = 256,129,858.10/x
  3. Step 3: Cross multiply
    279,938,414.90x = 419,907,622.35 × 256,129,858.10
  4. Step 4: Simplify right side
    279,938,414.90x = 107,550,879,727,613,888
  5. Step 5: Solve for x
    x = 107,550,879,727,613,888/279,938,414.90
  6. Step 6: Final answer
    x = 384,194,787.15

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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.