Home / 7,879,135.20-11,809,954.80-3,085,231.20

Finding the Fourth Proportional to 7,879,135.20, 11,809,954.80 and 3,085,231.20

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Solution

The fourth proportional to 7,879,135.20, 11,809,954.80 and 3,085,231.20 is: 4,624,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879,135.20 : 11,809,954.80 = 3,085,231.20 : x
  2. Step 2: Convert to fraction form
    7,879,135.20/11,809,954.80 = 3,085,231.20/x
  3. Step 3: Cross multiply
    7,879,135.20x = 11,809,954.80 × 3,085,231.20
  4. Step 4: Simplify right side
    7,879,135.20x = 36,436,441,019,549.77
  5. Step 5: Solve for x
    x = 36,436,441,019,549.77/7,879,135.20
  6. Step 6: Final answer
    x = 4,624,421.35

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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.