Home / 202,145,910.75-278,961,356.63-109,326,418.49

Finding the Fourth Proportional to 202,145,910.75, 278,961,356.63 and 109,326,418.49

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Solution

The fourth proportional to 202,145,910.75, 278,961,356.63 and 109,326,418.49 is: 150,870,457.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,145,910.75 : 278,961,356.63 = 109,326,418.49 : x
  2. Step 2: Convert to fraction form
    202,145,910.75/278,961,356.63 = 109,326,418.49/x
  3. Step 3: Cross multiply
    202,145,910.75x = 278,961,356.63 × 109,326,418.49
  4. Step 4: Simplify right side
    202,145,910.75x = 30,497,846,018,440,236
  5. Step 5: Solve for x
    x = 30,497,846,018,440,236/202,145,910.75
  6. Step 6: Final answer
    x = 150,870,457.41

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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.