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Finding the Fourth Proportional to 26,339,715.60, 39,438,714.60 and 20,623,772.40

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Solution

The fourth proportional to 26,339,715.60, 39,438,714.60 and 20,623,772.40 is: 30,880,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,339,715.60 : 39,438,714.60 = 20,623,772.40 : x
  2. Step 2: Convert to fraction form
    26,339,715.60/39,438,714.60 = 20,623,772.40/x
  3. Step 3: Cross multiply
    26,339,715.60x = 39,438,714.60 × 20,623,772.40
  4. Step 4: Simplify right side
    26,339,715.60x = 813,375,073,658,957
  5. Step 5: Solve for x
    x = 813,375,073,658,957/26,339,715.60
  6. Step 6: Final answer
    x = 30,880,176.76

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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.