Home / 71,485,403.56-98,650,285.70-38,890,588.84

Finding the Fourth Proportional to 71,485,403.56, 98,650,285.70 and 38,890,588.84

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Solution

The fourth proportional to 71,485,403.56, 98,650,285.70 and 38,890,588.84 is: 53,669,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,485,403.56 : 98,650,285.70 = 38,890,588.84 : x
  2. Step 2: Convert to fraction form
    71,485,403.56/98,650,285.70 = 38,890,588.84/x
  3. Step 3: Cross multiply
    71,485,403.56x = 98,650,285.70 × 38,890,588.84
  4. Step 4: Simplify right side
    71,485,403.56x = 3,836,567,700,107,232
  5. Step 5: Solve for x
    x = 3,836,567,700,107,232/71,485,403.56
  6. Step 6: Final answer
    x = 53,669,245.87

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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.