Home / 20,873,992.32-28,801,509.12-20,185,873.92

Finding the Fourth Proportional to 20,873,992.32, 28,801,509.12 and 20,185,873.92

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Solution

The fourth proportional to 20,873,992.32, 28,801,509.12 and 20,185,873.92 is: 27,852,057.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,873,992.32 : 28,801,509.12 = 20,185,873.92 : x
  2. Step 2: Convert to fraction form
    20,873,992.32/28,801,509.12 = 20,185,873.92/x
  3. Step 3: Cross multiply
    20,873,992.32x = 28,801,509.12 × 20,185,873.92
  4. Step 4: Simplify right side
    20,873,992.32x = 581,383,631,802,050.25
  5. Step 5: Solve for x
    x = 581,383,631,802,050.25/20,873,992.32
  6. Step 6: Final answer
    x = 27,852,057.38

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1.5x scale

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.