Home / 323,530,643.80-485,295,965.70-247,003,139.80

Finding the Fourth Proportional to 323,530,643.80, 485,295,965.70 and 247,003,139.80

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Solution

The fourth proportional to 323,530,643.80, 485,295,965.70 and 247,003,139.80 is: 370,504,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,530,643.80 : 485,295,965.70 = 247,003,139.80 : x
  2. Step 2: Convert to fraction form
    323,530,643.80/485,295,965.70 = 247,003,139.80/x
  3. Step 3: Cross multiply
    323,530,643.80x = 485,295,965.70 × 247,003,139.80
  4. Step 4: Simplify right side
    323,530,643.80x = 119,869,627,260,173,104
  5. Step 5: Solve for x
    x = 119,869,627,260,173,104/323,530,643.80
  6. Step 6: Final answer
    x = 370,504,709.70

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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.