Home / 20,672,710.61-28,527,855.41-11,505,156.53

Finding the Fourth Proportional to 20,672,710.61, 28,527,855.41 and 11,505,156.53

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Solution

The fourth proportional to 20,672,710.61, 28,527,855.41 and 11,505,156.53 is: 15,876,845.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,672,710.61 : 28,527,855.41 = 11,505,156.53 : x
  2. Step 2: Convert to fraction form
    20,672,710.61/28,527,855.41 = 11,505,156.53/x
  3. Step 3: Cross multiply
    20,672,710.61x = 28,527,855.41 × 11,505,156.53
  4. Step 4: Simplify right side
    20,672,710.61x = 328,217,441,843,381
  5. Step 5: Solve for x
    x = 328,217,441,843,381/20,672,710.61
  6. Step 6: Final answer
    x = 15,876,845.96

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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.