Home / 28,458,601.09-39,272,824.08-15,405,856.54

Finding the Fourth Proportional to 28,458,601.09, 39,272,824.08 and 15,405,856.54

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Solution

The fourth proportional to 28,458,601.09, 39,272,824.08 and 15,405,856.54 is: 21,260,057.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458,601.09 : 39,272,824.08 = 15,405,856.54 : x
  2. Step 2: Convert to fraction form
    28,458,601.09/39,272,824.08 = 15,405,856.54/x
  3. Step 3: Cross multiply
    28,458,601.09x = 39,272,824.08 × 15,405,856.54
  4. Step 4: Simplify right side
    28,458,601.09x = 605,031,493,697,137.38
  5. Step 5: Solve for x
    x = 605,031,493,697,137.38/28,458,601.09
  6. Step 6: Final answer
    x = 21,260,057.44

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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.