Home / 435,491,611.20-653,237,416.80-290,372,788.80

Finding the Fourth Proportional to 435,491,611.20, 653,237,416.80 and 290,372,788.80

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Solution

The fourth proportional to 435,491,611.20, 653,237,416.80 and 290,372,788.80 is: 435,559,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,491,611.20 : 653,237,416.80 = 290,372,788.80 : x
  2. Step 2: Convert to fraction form
    435,491,611.20/653,237,416.80 = 290,372,788.80/x
  3. Step 3: Cross multiply
    435,491,611.20x = 653,237,416.80 × 290,372,788.80
  4. Step 4: Simplify right side
    435,491,611.20x = 189,682,370,464,723,968
  5. Step 5: Solve for x
    x = 189,682,370,464,723,968/435,491,611.20
  6. Step 6: Final answer
    x = 435,559,183.20

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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.