Home / 279,938,309.10-419,907,463.65-254,408,145.90

Finding the Fourth Proportional to 279,938,309.10, 419,907,463.65 and 254,408,145.90

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Solution

The fourth proportional to 279,938,309.10, 419,907,463.65 and 254,408,145.90 is: 381,612,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,938,309.10 : 419,907,463.65 = 254,408,145.90 : x
  2. Step 2: Convert to fraction form
    279,938,309.10/419,907,463.65 = 254,408,145.90/x
  3. Step 3: Cross multiply
    279,938,309.10x = 419,907,463.65 × 254,408,145.90
  4. Step 4: Simplify right side
    279,938,309.10x = 106,827,879,276,768,144
  5. Step 5: Solve for x
    x = 106,827,879,276,768,144/279,938,309.10
  6. Step 6: Final answer
    x = 381,612,218.85

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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.