Home / 28,164,705.12-42,247,064.16-18,131,099.04

Finding the Fourth Proportional to 28,164,705.12, 42,247,064.16 and 18,131,099.04

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Solution

The fourth proportional to 28,164,705.12, 42,247,064.16 and 18,131,099.04 is: 27,196,652.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,164,705.12 : 42,247,064.16 = 18,131,099.04 : x
  2. Step 2: Convert to fraction form
    28,164,705.12/42,247,064.16 = 18,131,099.04/x
  3. Step 3: Cross multiply
    28,164,705.12x = 42,247,064.16 × 18,131,099.04
  4. Step 4: Simplify right side
    28,164,705.12x = 765,985,704,434,194.25
  5. Step 5: Solve for x
    x = 765,985,704,434,194.25/28,164,705.12
  6. Step 6: Final answer
    x = 27,196,652.73

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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.