Home / 20,769,812.54-31,137,862.44-8,648,344.52

Finding the Fourth Proportional to 20,769,812.54, 31,137,862.44 and 8,648,344.52

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Solution

The fourth proportional to 20,769,812.54, 31,137,862.44 and 8,648,344.52 is: 12,965,497.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,812.54 : 31,137,862.44 = 8,648,344.52 : x
  2. Step 2: Convert to fraction form
    20,769,812.54/31,137,862.44 = 8,648,344.52/x
  3. Step 3: Cross multiply
    20,769,812.54x = 31,137,862.44 × 8,648,344.52
  4. Step 4: Simplify right side
    20,769,812.54x = 269,290,961,997,487.81
  5. Step 5: Solve for x
    x = 269,290,961,997,487.81/20,769,812.54
  6. Step 6: Final answer
    x = 12,965,497.95

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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.