Home / 12,603,872.90-18,915,140.55-8,342,624.90

Finding the Fourth Proportional to 12,603,872.90, 18,915,140.55 and 8,342,624.90

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Solution

The fourth proportional to 12,603,872.90, 18,915,140.55 and 8,342,624.90 is: 12,520,113.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603,872.90 : 18,915,140.55 = 8,342,624.90 : x
  2. Step 2: Convert to fraction form
    12,603,872.90/18,915,140.55 = 8,342,624.90/x
  3. Step 3: Cross multiply
    12,603,872.90x = 18,915,140.55 × 8,342,624.90
  4. Step 4: Simplify right side
    12,603,872.90x = 157,801,922,539,429.72
  5. Step 5: Solve for x
    x = 157,801,922,539,429.72/12,603,872.90
  6. Step 6: Final answer
    x = 12,520,113.76

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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.