Home / 20,760,922.84-28,650,884.34-11,468,972.20

Finding the Fourth Proportional to 20,760,922.84, 28,650,884.34 and 11,468,972.20

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Solution

The fourth proportional to 20,760,922.84, 28,650,884.34 and 11,468,972.20 is: 15,827,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,922.84 : 28,650,884.34 = 11,468,972.20 : x
  2. Step 2: Convert to fraction form
    20,760,922.84/28,650,884.34 = 11,468,972.20/x
  3. Step 3: Cross multiply
    20,760,922.84x = 28,650,884.34 × 11,468,972.20
  4. Step 4: Simplify right side
    20,760,922.84x = 328,596,196,000,875.31
  5. Step 5: Solve for x
    x = 328,596,196,000,875.31/20,760,922.84
  6. Step 6: Final answer
    x = 15,827,629.56

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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.