Home / 20,790,339.90-31,183,127.37-5,439,111

Finding the Fourth Proportional to 20,790,339.90, 31,183,127.37 and 5,439,111

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Solution

The fourth proportional to 20,790,339.90, 31,183,127.37 and 5,439,111 is: 8,158,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,339.90 : 31,183,127.37 = 5,439,111 : x
  2. Step 2: Convert to fraction form
    20,790,339.90/31,183,127.37 = 5,439,111/x
  3. Step 3: Cross multiply
    20,790,339.90x = 31,183,127.37 × 5,439,111
  4. Step 4: Simplify right side
    20,790,339.90x = 169,608,491,092,568.06
  5. Step 5: Solve for x
    x = 169,608,491,092,568.06/20,790,339.90
  6. Step 6: Final answer
    x = 8,158,043.20

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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.