Home / 289,940,969.10-400,118,603.31-159,560,777.10

Finding the Fourth Proportional to 289,940,969.10, 400,118,603.31 and 159,560,777.10

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Solution

The fourth proportional to 289,940,969.10, 400,118,603.31 and 159,560,777.10 is: 220,193,908.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,940,969.10 : 400,118,603.31 = 159,560,777.10 : x
  2. Step 2: Convert to fraction form
    289,940,969.10/400,118,603.31 = 159,560,777.10/x
  3. Step 3: Cross multiply
    289,940,969.10x = 400,118,603.31 × 159,560,777.10
  4. Step 4: Simplify right side
    289,940,969.10x = 63,843,235,276,310,232
  5. Step 5: Solve for x
    x = 63,843,235,276,310,232/289,940,969.10
  6. Step 6: Final answer
    x = 220,193,908.69

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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.