Home / 15,191,896.40-20,964,815.47-8,222,572.74

Finding the Fourth Proportional to 15,191,896.40, 20,964,815.47 and 8,222,572.74

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Solution

The fourth proportional to 15,191,896.40, 20,964,815.47 and 8,222,572.74 is: 11,347,149.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191,896.40 : 20,964,815.47 = 8,222,572.74 : x
  2. Step 2: Convert to fraction form
    15,191,896.40/20,964,815.47 = 8,222,572.74/x
  3. Step 3: Cross multiply
    15,191,896.40x = 20,964,815.47 × 8,222,572.74
  4. Step 4: Simplify right side
    15,191,896.40x = 172,384,720,182,752.28
  5. Step 5: Solve for x
    x = 172,384,720,182,752.28/15,191,896.40
  6. Step 6: Final answer
    x = 11,347,149.54

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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.