Home / 279,938,563.90-419,907,845.85-256,130,007.10

Finding the Fourth Proportional to 279,938,563.90, 419,907,845.85 and 256,130,007.10

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Solution

The fourth proportional to 279,938,563.90, 419,907,845.85 and 256,130,007.10 is: 384,195,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,563.90 : 419,907,845.85 = 256,130,007.10 : x
  2. Step 2: Convert to fraction form
    279,938,563.90/419,907,845.85 = 256,130,007.10/x
  3. Step 3: Cross multiply
    279,938,563.90x = 419,907,845.85 × 256,130,007.10
  4. Step 4: Simplify right side
    279,938,563.90x = 107,550,999,538,906,208
  5. Step 5: Solve for x
    x = 107,550,999,538,906,208/279,938,563.90
  6. Step 6: Final answer
    x = 384,195,010.65

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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.