Home / 21,103,659.92-31,654,509.24-8,802,546.32

Finding the Fourth Proportional to 21,103,659.92, 31,654,509.24 and 8,802,546.32

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Solution

The fourth proportional to 21,103,659.92, 31,654,509.24 and 8,802,546.32 is: 13,203,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103,659.92 : 31,654,509.24 = 8,802,546.32 : x
  2. Step 2: Convert to fraction form
    21,103,659.92/31,654,509.24 = 8,802,546.32/x
  3. Step 3: Cross multiply
    21,103,659.92x = 31,654,509.24 × 8,802,546.32
  4. Step 4: Simplify right side
    21,103,659.92x = 278,640,283,821,968
  5. Step 5: Solve for x
    x = 278,640,283,821,968/21,103,659.92
  6. Step 6: Final answer
    x = 13,203,410.45

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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.