Home / 290,147,236.20-434,937,419.10-259,536,234.60

Finding the Fourth Proportional to 290,147,236.20, 434,937,419.10 and 259,536,234.60

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Solution

The fourth proportional to 290,147,236.20, 434,937,419.10 and 259,536,234.60 is: 389,050,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,147,236.20 : 434,937,419.10 = 259,536,234.60 : x
  2. Step 2: Convert to fraction form
    290,147,236.20/434,937,419.10 = 259,536,234.60/x
  3. Step 3: Cross multiply
    290,147,236.20x = 434,937,419.10 × 259,536,234.60
  4. Step 4: Simplify right side
    290,147,236.20x = 112,882,020,039,856,128
  5. Step 5: Solve for x
    x = 112,882,020,039,856,128/290,147,236.20
  6. Step 6: Final answer
    x = 389,050,819.57

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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.