Home / 20,612,612.13-28,456,448.27-15,892,698.95

Finding the Fourth Proportional to 20,612,612.13, 28,456,448.27 and 15,892,698.95

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Solution

The fourth proportional to 20,612,612.13, 28,456,448.27 and 15,892,698.95 is: 21,940,439.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,612.13 : 28,456,448.27 = 15,892,698.95 : x
  2. Step 2: Convert to fraction form
    20,612,612.13/28,456,448.27 = 15,892,698.95/x
  3. Step 3: Cross multiply
    20,612,612.13x = 28,456,448.27 × 15,892,698.95
  4. Step 4: Simplify right side
    20,612,612.13x = 452,249,765,541,358.31
  5. Step 5: Solve for x
    x = 452,249,765,541,358.31/20,612,612.13
  6. Step 6: Final answer
    x = 21,940,439.31

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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.