Home / 18,691,813.61-28,042,124.43-6,395,910.81

Finding the Fourth Proportional to 18,691,813.61, 28,042,124.43 and 6,395,910.81

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Solution

The fourth proportional to 18,691,813.61, 28,042,124.43 and 6,395,910.81 is: 9,595,373.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,691,813.61 : 28,042,124.43 = 6,395,910.81 : x
  2. Step 2: Convert to fraction form
    18,691,813.61/28,042,124.43 = 6,395,910.81/x
  3. Step 3: Cross multiply
    18,691,813.61x = 28,042,124.43 × 6,395,910.81
  4. Step 4: Simplify right side
    18,691,813.61x = 179,354,926,644,310.34
  5. Step 5: Solve for x
    x = 179,354,926,644,310.34/18,691,813.61
  6. Step 6: Final answer
    x = 9,595,373.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.