Home / 20,407,825.66-28,162,798.41-11,240,468.86

Finding the Fourth Proportional to 20,407,825.66, 28,162,798.41 and 11,240,468.86

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Solution

The fourth proportional to 20,407,825.66, 28,162,798.41 and 11,240,468.86 is: 15,511,846.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407,825.66 : 28,162,798.41 = 11,240,468.86 : x
  2. Step 2: Convert to fraction form
    20,407,825.66/28,162,798.41 = 11,240,468.86/x
  3. Step 3: Cross multiply
    20,407,825.66x = 28,162,798.41 × 11,240,468.86
  4. Step 4: Simplify right side
    20,407,825.66x = 316,563,058,538,062.50
  5. Step 5: Solve for x
    x = 316,563,058,538,062.50/20,407,825.66
  6. Step 6: Final answer
    x = 15,511,846.48

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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.