Home / 20,280,893.28-30,400,869.56-12,713,173.44

Finding the Fourth Proportional to 20,280,893.28, 30,400,869.56 and 12,713,173.44

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Solution

The fourth proportional to 20,280,893.28, 30,400,869.56 and 12,713,173.44 is: 19,056,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,280,893.28 : 30,400,869.56 = 12,713,173.44 : x
  2. Step 2: Convert to fraction form
    20,280,893.28/30,400,869.56 = 12,713,173.44/x
  3. Step 3: Cross multiply
    20,280,893.28x = 30,400,869.56 × 12,713,173.44
  4. Step 4: Simplify right side
    20,280,893.28x = 386,491,527,443,096.44
  5. Step 5: Solve for x
    x = 386,491,527,443,096.44/20,280,893.28
  6. Step 6: Final answer
    x = 19,056,928.22

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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.