Home / 20,415,190.08-28,172,946.96-11,247,832.80

Finding the Fourth Proportional to 20,415,190.08, 28,172,946.96 and 11,247,832.80

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Solution

The fourth proportional to 20,415,190.08, 28,172,946.96 and 11,247,832.80 is: 15,522,000.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,190.08 : 28,172,946.96 = 11,247,832.80 : x
  2. Step 2: Convert to fraction form
    20,415,190.08/28,172,946.96 = 11,247,832.80/x
  3. Step 3: Cross multiply
    20,415,190.08x = 28,172,946.96 × 11,247,832.80
  4. Step 4: Simplify right side
    20,415,190.08x = 316,884,596,889,348.31
  5. Step 5: Solve for x
    x = 316,884,596,889,348.31/20,415,190.08
  6. Step 6: Final answer
    x = 15,522,000.81

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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.