Home / 20,538,488.94-28,343,878.83-11,719,375.98

Finding the Fourth Proportional to 20,538,488.94, 28,343,878.83 and 11,719,375.98

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Solution

The fourth proportional to 20,538,488.94, 28,343,878.83 and 11,719,375.98 is: 16,173,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,538,488.94 : 28,343,878.83 = 11,719,375.98 : x
  2. Step 2: Convert to fraction form
    20,538,488.94/28,343,878.83 = 11,719,375.98/x
  3. Step 3: Cross multiply
    20,538,488.94x = 28,343,878.83 × 11,719,375.98
  4. Step 4: Simplify right side
    20,538,488.94x = 332,172,572,740,332.50
  5. Step 5: Solve for x
    x = 332,172,572,740,332.50/20,538,488.94
  6. Step 6: Final answer
    x = 16,173,174.85

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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.