Home / 20,617,325.76-28,452,560.40-12,354,664.80

Finding the Fourth Proportional to 20,617,325.76, 28,452,560.40 and 12,354,664.80

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Solution

The fourth proportional to 20,617,325.76, 28,452,560.40 and 12,354,664.80 is: 17,049,827.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617,325.76 : 28,452,560.40 = 12,354,664.80 : x
  2. Step 2: Convert to fraction form
    20,617,325.76/28,452,560.40 = 12,354,664.80/x
  3. Step 3: Cross multiply
    20,617,325.76x = 28,452,560.40 × 12,354,664.80
  4. Step 4: Simplify right side
    20,617,325.76x = 351,521,846,443,753.94
  5. Step 5: Solve for x
    x = 351,521,846,443,753.94/20,617,325.76
  6. Step 6: Final answer
    x = 17,049,827.44

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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.