Home / 20,310,720.78-30,473,665.23-8,183,624.64

Finding the Fourth Proportional to 20,310,720.78, 30,473,665.23 and 8,183,624.64

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Solution

The fourth proportional to 20,310,720.78, 30,473,665.23 and 8,183,624.64 is: 12,278,492.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,310,720.78 : 30,473,665.23 = 8,183,624.64 : x
  2. Step 2: Convert to fraction form
    20,310,720.78/30,473,665.23 = 8,183,624.64/x
  3. Step 3: Cross multiply
    20,310,720.78x = 30,473,665.23 × 8,183,624.64
  4. Step 4: Simplify right side
    20,310,720.78x = 249,385,037,647,339.25
  5. Step 5: Solve for x
    x = 249,385,037,647,339.25/20,310,720.78
  6. Step 6: Final answer
    x = 12,278,492.74

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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.