Home / 42,771,093.80-64,156,640.70-12,482,018.60

Finding the Fourth Proportional to 42,771,093.80, 64,156,640.70 and 12,482,018.60

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Solution

The fourth proportional to 42,771,093.80, 64,156,640.70 and 12,482,018.60 is: 18,723,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,771,093.80 : 64,156,640.70 = 12,482,018.60 : x
  2. Step 2: Convert to fraction form
    42,771,093.80/64,156,640.70 = 12,482,018.60/x
  3. Step 3: Cross multiply
    42,771,093.80x = 64,156,640.70 × 12,482,018.60
  4. Step 4: Simplify right side
    42,771,093.80x = 800,804,382,530,917
  5. Step 5: Solve for x
    x = 800,804,382,530,917/42,771,093.80
  6. Step 6: Final answer
    x = 18,723,027.90

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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.