Home / 21,516,101.20-32,240,974.20-18,662,827.60

Finding the Fourth Proportional to 21,516,101.20, 32,240,974.20 and 18,662,827.60

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Solution

The fourth proportional to 21,516,101.20, 32,240,974.20 and 18,662,827.60 is: 27,965,463.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,516,101.20 : 32,240,974.20 = 18,662,827.60 : x
  2. Step 2: Convert to fraction form
    21,516,101.20/32,240,974.20 = 18,662,827.60/x
  3. Step 3: Cross multiply
    21,516,101.20x = 32,240,974.20 × 18,662,827.60
  4. Step 4: Simplify right side
    21,516,101.20x = 601,707,743,150,648
  5. Step 5: Solve for x
    x = 601,707,743,150,648/21,516,101.20
  6. Step 6: Final answer
    x = 27,965,463.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.