Home / 28,648,672.20-42,958,233.90-8,451,289.80

Finding the Fourth Proportional to 28,648,672.20, 42,958,233.90 and 8,451,289.80

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Solution

The fourth proportional to 28,648,672.20, 42,958,233.90 and 8,451,289.80 is: 12,672,576.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,648,672.20 : 42,958,233.90 = 8,451,289.80 : x
  2. Step 2: Convert to fraction form
    28,648,672.20/42,958,233.90 = 8,451,289.80/x
  3. Step 3: Cross multiply
    28,648,672.20x = 42,958,233.90 × 8,451,289.80
  4. Step 4: Simplify right side
    28,648,672.20x = 363,052,483,985,084.25
  5. Step 5: Solve for x
    x = 363,052,483,985,084.25/28,648,672.20
  6. Step 6: Final answer
    x = 12,672,576.29

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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.