Home / 21,508,214.40-32,262,321.60-20,247,465.60

Finding the Fourth Proportional to 21,508,214.40, 32,262,321.60 and 20,247,465.60

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Solution

The fourth proportional to 21,508,214.40, 32,262,321.60 and 20,247,465.60 is: 30,371,198.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508,214.40 : 32,262,321.60 = 20,247,465.60 : x
  2. Step 2: Convert to fraction form
    21,508,214.40/32,262,321.60 = 20,247,465.60/x
  3. Step 3: Cross multiply
    21,508,214.40x = 32,262,321.60 × 20,247,465.60
  4. Step 4: Simplify right side
    21,508,214.40x = 653,230,246,772,137
  5. Step 5: Solve for x
    x = 653,230,246,772,137/21,508,214.40
  6. Step 6: Final answer
    x = 30,371,198.40

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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.