Home / 20,619,335.90-28,454,187.24-11,451,985.94

Finding the Fourth Proportional to 20,619,335.90, 28,454,187.24 and 11,451,985.94

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Solution

The fourth proportional to 20,619,335.90, 28,454,187.24 and 11,451,985.94 is: 15,803,464.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619,335.90 : 28,454,187.24 = 11,451,985.94 : x
  2. Step 2: Convert to fraction form
    20,619,335.90/28,454,187.24 = 11,451,985.94/x
  3. Step 3: Cross multiply
    20,619,335.90x = 28,454,187.24 × 11,451,985.94
  4. Step 4: Simplify right side
    20,619,335.90x = 325,856,952,128,094.75
  5. Step 5: Solve for x
    x = 325,856,952,128,094.75/20,619,335.90
  6. Step 6: Final answer
    x = 15,803,464.95

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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.