Home / 28,672,945.83-39,568,509.99-15,620,173.44

Finding the Fourth Proportional to 28,672,945.83, 39,568,509.99 and 15,620,173.44

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Solution

The fourth proportional to 28,672,945.83, 39,568,509.99 and 15,620,173.44 is: 21,555,754.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,672,945.83 : 39,568,509.99 = 15,620,173.44 : x
  2. Step 2: Convert to fraction form
    28,672,945.83/39,568,509.99 = 15,620,173.44/x
  3. Step 3: Cross multiply
    28,672,945.83x = 39,568,509.99 × 15,620,173.44
  4. Step 4: Simplify right side
    28,672,945.83x = 618,066,988,806,172.62
  5. Step 5: Solve for x
    x = 618,066,988,806,172.62/28,672,945.83
  6. Step 6: Final answer
    x = 21,555,754.77

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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.