Home / 28,378,349.87-39,162,121.32-15,325,607.54

Finding the Fourth Proportional to 28,378,349.87, 39,162,121.32 and 15,325,607.54

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Solution

The fourth proportional to 28,378,349.87, 39,162,121.32 and 15,325,607.54 is: 21,149,337.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,349.87 : 39,162,121.32 = 15,325,607.54 : x
  2. Step 2: Convert to fraction form
    28,378,349.87/39,162,121.32 = 15,325,607.54/x
  3. Step 3: Cross multiply
    28,378,349.87x = 39,162,121.32 × 15,325,607.54
  4. Step 4: Simplify right side
    28,378,349.87x = 600,183,301,588,376.12
  5. Step 5: Solve for x
    x = 600,183,301,588,376.12/28,378,349.87
  6. Step 6: Final answer
    x = 21,149,337.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.