Home / 330,345,237.76-455,747,403.37-189,140,993.21

Finding the Fourth Proportional to 330,345,237.76, 455,747,403.37 and 189,140,993.21

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Solution

The fourth proportional to 330,345,237.76, 455,747,403.37 and 189,140,993.21 is: 260,940,696.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,345,237.76 : 455,747,403.37 = 189,140,993.21 : x
  2. Step 2: Convert to fraction form
    330,345,237.76/455,747,403.37 = 189,140,993.21/x
  3. Step 3: Cross multiply
    330,345,237.76x = 455,747,403.37 × 189,140,993.21
  4. Step 4: Simplify right side
    330,345,237.76x = 86,200,516,526,280,304
  5. Step 5: Solve for x
    x = 86,200,516,526,280,304/330,345,237.76
  6. Step 6: Final answer
    x = 260,940,696.81

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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.