Home / 20,415,192.58-28,172,950.41-11,247,835.30

Finding the Fourth Proportional to 20,415,192.58, 28,172,950.41 and 11,247,835.30

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Solution

The fourth proportional to 20,415,192.58, 28,172,950.41 and 11,247,835.30 is: 15,522,004.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,192.58 : 28,172,950.41 = 11,247,835.30 : x
  2. Step 2: Convert to fraction form
    20,415,192.58/28,172,950.41 = 11,247,835.30/x
  3. Step 3: Cross multiply
    20,415,192.58x = 28,172,950.41 × 11,247,835.30
  4. Step 4: Simplify right side
    20,415,192.58x = 316,884,706,126,747.50
  5. Step 5: Solve for x
    x = 316,884,706,126,747.50/20,415,192.58
  6. Step 6: Final answer
    x = 15,522,004.26

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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.