Home / 57,887,769.92-79,885,279.67-31,783,978.49

Finding the Fourth Proportional to 57,887,769.92, 79,885,279.67 and 31,783,978.49

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Solution

The fourth proportional to 57,887,769.92, 79,885,279.67 and 31,783,978.49 is: 43,861,976.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,887,769.92 : 79,885,279.67 = 31,783,978.49 : x
  2. Step 2: Convert to fraction form
    57,887,769.92/79,885,279.67 = 31,783,978.49/x
  3. Step 3: Cross multiply
    57,887,769.92x = 79,885,279.67 × 31,783,978.49
  4. Step 4: Simplify right side
    57,887,769.92x = 2,539,072,010,140,568
  5. Step 5: Solve for x
    x = 2,539,072,010,140,568/57,887,769.92
  6. Step 6: Final answer
    x = 43,861,976.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.