Home / 289,940,928.12-400,118,546.16-159,560,736.12

Finding the Fourth Proportional to 289,940,928.12, 400,118,546.16 and 159,560,736.12

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Solution

The fourth proportional to 289,940,928.12, 400,118,546.16 and 159,560,736.12 is: 220,193,851.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,940,928.12 : 400,118,546.16 = 159,560,736.12 : x
  2. Step 2: Convert to fraction form
    289,940,928.12/400,118,546.16 = 159,560,736.12/x
  3. Step 3: Cross multiply
    289,940,928.12x = 400,118,546.16 × 159,560,736.12
  4. Step 4: Simplify right side
    289,940,928.12x = 63,843,209,760,553,808
  5. Step 5: Solve for x
    x = 63,843,209,760,553,808/289,940,928.12
  6. Step 6: Final answer
    x = 220,193,851.81

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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.