Home / 7,161,701.18-9,883,148.70-3,898,540.68

Finding the Fourth Proportional to 7,161,701.18, 9,883,148.70 and 3,898,540.68

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Solution

The fourth proportional to 7,161,701.18, 9,883,148.70 and 3,898,540.68 is: 5,379,986.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161,701.18 : 9,883,148.70 = 3,898,540.68 : x
  2. Step 2: Convert to fraction form
    7,161,701.18/9,883,148.70 = 3,898,540.68/x
  3. Step 3: Cross multiply
    7,161,701.18x = 9,883,148.70 × 3,898,540.68
  4. Step 4: Simplify right side
    7,161,701.18x = 38,529,857,253,439.12
  5. Step 5: Solve for x
    x = 38,529,857,253,439.12/7,161,701.18
  6. Step 6: Final answer
    x = 5,379,986.72

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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.