Home / 20,269,787.28-27,971,960.78-10,977,281.88

Finding the Fourth Proportional to 20,269,787.28, 27,971,960.78 and 10,977,281.88

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Solution

The fourth proportional to 20,269,787.28, 27,971,960.78 and 10,977,281.88 is: 15,148,461.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269,787.28 : 27,971,960.78 = 10,977,281.88 : x
  2. Step 2: Convert to fraction form
    20,269,787.28/27,971,960.78 = 10,977,281.88/x
  3. Step 3: Cross multiply
    20,269,787.28x = 27,971,960.78 × 10,977,281.88
  4. Step 4: Simplify right side
    20,269,787.28x = 307,056,098,218,364.69
  5. Step 5: Solve for x
    x = 307,056,098,218,364.69/20,269,787.28
  6. Step 6: Final answer
    x = 15,148,461.80

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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.