Home / 28,072,402.60-42,037,745.10-18,435,605.80

Finding the Fourth Proportional to 28,072,402.60, 42,037,745.10 and 18,435,605.80

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Solution

The fourth proportional to 28,072,402.60, 42,037,745.10 and 18,435,605.80 is: 27,606,874.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,072,402.60 : 42,037,745.10 = 18,435,605.80 : x
  2. Step 2: Convert to fraction form
    28,072,402.60/42,037,745.10 = 18,435,605.80/x
  3. Step 3: Cross multiply
    28,072,402.60x = 42,037,745.10 × 18,435,605.80
  4. Step 4: Simplify right side
    28,072,402.60x = 774,991,297,384,481.62
  5. Step 5: Solve for x
    x = 774,991,297,384,481.62/28,072,402.60
  6. Step 6: Final answer
    x = 27,606,874.57

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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.