Home / 18,682,893.20-28,021,715.40-5,904,689.60

Finding the Fourth Proportional to 18,682,893.20, 28,021,715.40 and 5,904,689.60

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Solution

The fourth proportional to 18,682,893.20, 28,021,715.40 and 5,904,689.60 is: 8,856,204.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,682,893.20 : 28,021,715.40 = 5,904,689.60 : x
  2. Step 2: Convert to fraction form
    18,682,893.20/28,021,715.40 = 5,904,689.60/x
  3. Step 3: Cross multiply
    18,682,893.20x = 28,021,715.40 × 5,904,689.60
  4. Step 4: Simplify right side
    18,682,893.20x = 165,459,531,496,539.81
  5. Step 5: Solve for x
    x = 165,459,531,496,539.81/18,682,893.20
  6. Step 6: Final answer
    x = 8,856,204.96

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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.