Home / 253,696,037.76-380,600,743.68-81,183,203.28

Finding the Fourth Proportional to 253,696,037.76, 380,600,743.68 and 81,183,203.28

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Solution

The fourth proportional to 253,696,037.76, 380,600,743.68 and 81,183,203.28 is: 121,792,944.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,696,037.76 : 380,600,743.68 = 81,183,203.28 : x
  2. Step 2: Convert to fraction form
    253,696,037.76/380,600,743.68 = 81,183,203.28/x
  3. Step 3: Cross multiply
    253,696,037.76x = 380,600,743.68 × 81,183,203.28
  4. Step 4: Simplify right side
    253,696,037.76x = 30,898,387,542,692,616
  5. Step 5: Solve for x
    x = 30,898,387,542,692,616/253,696,037.76
  6. Step 6: Final answer
    x = 121,792,944.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.