Home / 20,718,004.25-31,068,456.09-7,072,249.74

Finding the Fourth Proportional to 20,718,004.25, 31,068,456.09 and 7,072,249.74

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Solution

The fourth proportional to 20,718,004.25, 31,068,456.09 and 7,072,249.74 is: 10,605,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718,004.25 : 31,068,456.09 = 7,072,249.74 : x
  2. Step 2: Convert to fraction form
    20,718,004.25/31,068,456.09 = 7,072,249.74/x
  3. Step 3: Cross multiply
    20,718,004.25x = 31,068,456.09 × 7,072,249.74
  4. Step 4: Simplify right side
    20,718,004.25x = 219,723,880,594,689.69
  5. Step 5: Solve for x
    x = 219,723,880,594,689.69/20,718,004.25
  6. Step 6: Final answer
    x = 10,605,455.91

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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.