Home / 15,363,499.72-21,201,378.80-8,394,027.28

Finding the Fourth Proportional to 15,363,499.72, 21,201,378.80 and 8,394,027.28

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Solution

The fourth proportional to 15,363,499.72, 21,201,378.80 and 8,394,027.28 is: 11,583,620.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,363,499.72 : 21,201,378.80 = 8,394,027.28 : x
  2. Step 2: Convert to fraction form
    15,363,499.72/21,201,378.80 = 8,394,027.28/x
  3. Step 3: Cross multiply
    15,363,499.72x = 21,201,378.80 × 8,394,027.28
  4. Step 4: Simplify right side
    15,363,499.72x = 177,964,952,020,813.66
  5. Step 5: Solve for x
    x = 177,964,952,020,813.66/15,363,499.72
  6. Step 6: Final answer
    x = 11,583,620.61

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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.