Home / 12,290,621.70-18,435,932.55-4,312,445.70

Finding the Fourth Proportional to 12,290,621.70, 18,435,932.55 and 4,312,445.70

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Solution

The fourth proportional to 12,290,621.70, 18,435,932.55 and 4,312,445.70 is: 6,468,668.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290,621.70 : 18,435,932.55 = 4,312,445.70 : x
  2. Step 2: Convert to fraction form
    12,290,621.70/18,435,932.55 = 4,312,445.70/x
  3. Step 3: Cross multiply
    12,290,621.70x = 18,435,932.55 × 4,312,445.70
  4. Step 4: Simplify right side
    12,290,621.70x = 79,503,958,050,737.55
  5. Step 5: Solve for x
    x = 79,503,958,050,737.55/12,290,621.70
  6. Step 6: Final answer
    x = 6,468,668.55

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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.