Home / 20,407,825.41-28,162,798.07-11,240,468.61

Finding the Fourth Proportional to 20,407,825.41, 28,162,798.07 and 11,240,468.61

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Solution

The fourth proportional to 20,407,825.41, 28,162,798.07 and 11,240,468.61 is: 15,511,846.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,407,825.41 : 28,162,798.07 = 11,240,468.61 : x
  2. Step 2: Convert to fraction form
    20,407,825.41/28,162,798.07 = 11,240,468.61/x
  3. Step 3: Cross multiply
    20,407,825.41x = 28,162,798.07 × 11,240,468.61
  4. Step 4: Simplify right side
    20,407,825.41x = 316,563,047,619,401.25
  5. Step 5: Solve for x
    x = 316,563,047,619,401.25/20,407,825.41
  6. Step 6: Final answer
    x = 15,511,846.13

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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.