Home / 15,193,205.20-20,966,873.16-8,317,573.84

Finding the Fourth Proportional to 15,193,205.20, 20,966,873.16 and 8,317,573.84

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Solution

The fourth proportional to 15,193,205.20, 20,966,873.16 and 8,317,573.84 is: 11,478,388.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193,205.20 : 20,966,873.16 = 8,317,573.84 : x
  2. Step 2: Convert to fraction form
    15,193,205.20/20,966,873.16 = 8,317,573.84/x
  3. Step 3: Cross multiply
    15,193,205.20x = 20,966,873.16 × 8,317,573.84
  4. Step 4: Simplify right side
    15,193,205.20x = 174,393,515,702,214.12
  5. Step 5: Solve for x
    x = 174,393,515,702,214.12/15,193,205.20
  6. Step 6: Final answer
    x = 11,478,388.75

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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.