Home / 20,612,623.66-28,456,464.15-15,892,710.48

Finding the Fourth Proportional to 20,612,623.66, 28,456,464.15 and 15,892,710.48

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Solution

The fourth proportional to 20,612,623.66, 28,456,464.15 and 15,892,710.48 is: 21,940,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,623.66 : 28,456,464.15 = 15,892,710.48 : x
  2. Step 2: Convert to fraction form
    20,612,623.66/28,456,464.15 = 15,892,710.48/x
  3. Step 3: Cross multiply
    20,612,623.66x = 28,456,464.15 × 15,892,710.48
  4. Step 4: Simplify right side
    20,612,623.66x = 452,250,346,020,449.25
  5. Step 5: Solve for x
    x = 452,250,346,020,449.25/20,612,623.66
  6. Step 6: Final answer
    x = 21,940,455.21

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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.