Home / 20,563,560.78-28,377,537.48-11,271,646.86

Finding the Fourth Proportional to 20,563,560.78, 28,377,537.48 and 11,271,646.86

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Solution

The fourth proportional to 20,563,560.78, 28,377,537.48 and 11,271,646.86 is: 15,554,775.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,563,560.78 : 28,377,537.48 = 11,271,646.86 : x
  2. Step 2: Convert to fraction form
    20,563,560.78/28,377,537.48 = 11,271,646.86/x
  3. Step 3: Cross multiply
    20,563,560.78x = 28,377,537.48 × 11,271,646.86
  4. Step 4: Simplify right side
    20,563,560.78x = 319,861,581,230,974.31
  5. Step 5: Solve for x
    x = 319,861,581,230,974.31/20,563,560.78
  6. Step 6: Final answer
    x = 15,554,775.98

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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.