Home / 289,940,857.58-400,118,448.78-159,560,665.58

Finding the Fourth Proportional to 289,940,857.58, 400,118,448.78 and 159,560,665.58

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Solution

The fourth proportional to 289,940,857.58, 400,118,448.78 and 159,560,665.58 is: 220,193,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,940,857.58 : 400,118,448.78 = 159,560,665.58 : x
  2. Step 2: Convert to fraction form
    289,940,857.58/400,118,448.78 = 159,560,665.58/x
  3. Step 3: Cross multiply
    289,940,857.58x = 400,118,448.78 × 159,560,665.58
  4. Step 4: Simplify right side
    289,940,857.58x = 63,843,165,998,173,936
  5. Step 5: Solve for x
    x = 63,843,165,998,173,936/289,940,857.58
  6. Step 6: Final answer
    x = 220,193,754.45

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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.