Home / 5,431,400.70-8,148,085.20-2,728,924.80

Finding the Fourth Proportional to 5,431,400.70, 8,148,085.20 and 2,728,924.80

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Solution

The fourth proportional to 5,431,400.70, 8,148,085.20 and 2,728,924.80 is: 4,093,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,431,400.70 : 8,148,085.20 = 2,728,924.80 : x
  2. Step 2: Convert to fraction form
    5,431,400.70/8,148,085.20 = 2,728,924.80/x
  3. Step 3: Cross multiply
    5,431,400.70x = 8,148,085.20 × 2,728,924.80
  4. Step 4: Simplify right side
    5,431,400.70x = 22,235,511,774,792.96
  5. Step 5: Solve for x
    x = 22,235,511,774,792.96/5,431,400.70
  6. Step 6: Final answer
    x = 4,093,881.67

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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.