Home / 20,692,987.92-28,546,433.64-16,077,724.56

Finding the Fourth Proportional to 20,692,987.92, 28,546,433.64 and 16,077,724.56

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Solution

The fourth proportional to 20,692,987.92, 28,546,433.64 and 16,077,724.56 is: 22,179,575.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692,987.92 : 28,546,433.64 = 16,077,724.56 : x
  2. Step 2: Convert to fraction form
    20,692,987.92/28,546,433.64 = 16,077,724.56/x
  3. Step 3: Cross multiply
    20,692,987.92x = 28,546,433.64 × 16,077,724.56
  4. Step 4: Simplify right side
    20,692,987.92x = 458,961,697,234,238.25
  5. Step 5: Solve for x
    x = 458,961,697,234,238.25/20,692,987.92
  6. Step 6: Final answer
    x = 22,179,575.95

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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.