Home / 290,147,229.20-434,937,408.60-259,536,227.60

Finding the Fourth Proportional to 290,147,229.20, 434,937,408.60 and 259,536,227.60

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Solution

The fourth proportional to 290,147,229.20, 434,937,408.60 and 259,536,227.60 is: 389,050,809.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,147,229.20 : 434,937,408.60 = 259,536,227.60 : x
  2. Step 2: Convert to fraction form
    290,147,229.20/434,937,408.60 = 259,536,227.60/x
  3. Step 3: Cross multiply
    290,147,229.20x = 434,937,408.60 × 259,536,227.60
  4. Step 4: Simplify right side
    290,147,229.20x = 112,882,014,270,163,808
  5. Step 5: Solve for x
    x = 112,882,014,270,163,808/290,147,229.20
  6. Step 6: Final answer
    x = 389,050,809.07

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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.