Home / 442,659,611.70-663,989,417.55-289,777,230.90

Finding the Fourth Proportional to 442,659,611.70, 663,989,417.55 and 289,777,230.90

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Solution

The fourth proportional to 442,659,611.70, 663,989,417.55 and 289,777,230.90 is: 434,665,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,659,611.70 : 663,989,417.55 = 289,777,230.90 : x
  2. Step 2: Convert to fraction form
    442,659,611.70/663,989,417.55 = 289,777,230.90/x
  3. Step 3: Cross multiply
    442,659,611.70x = 663,989,417.55 × 289,777,230.90
  4. Step 4: Simplify right side
    442,659,611.70x = 192,409,014,764,542,848
  5. Step 5: Solve for x
    x = 192,409,014,764,542,848/442,659,611.70
  6. Step 6: Final answer
    x = 434,665,846.35

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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.