Home / 289,940,987.10-400,118,628.15-159,560,795.10

Finding the Fourth Proportional to 289,940,987.10, 400,118,628.15 and 159,560,795.10

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Solution

The fourth proportional to 289,940,987.10, 400,118,628.15 and 159,560,795.10 is: 220,193,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,940,987.10 : 400,118,628.15 = 159,560,795.10 : x
  2. Step 2: Convert to fraction form
    289,940,987.10/400,118,628.15 = 159,560,795.10/x
  3. Step 3: Cross multiply
    289,940,987.10x = 400,118,628.15 × 159,560,795.10
  4. Step 4: Simplify right side
    289,940,987.10x = 63,843,246,441,935,232
  5. Step 5: Solve for x
    x = 63,843,246,441,935,232/289,940,987.10
  6. Step 6: Final answer
    x = 220,193,933.53

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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.