Home / 320,378,778.04-442,095,988.83-296,954,187.34

Finding the Fourth Proportional to 320,378,778.04, 442,095,988.83 and 296,954,187.34

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Solution

The fourth proportional to 320,378,778.04, 442,095,988.83 and 296,954,187.34 is: 409,772,007.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,378,778.04 : 442,095,988.83 = 296,954,187.34 : x
  2. Step 2: Convert to fraction form
    320,378,778.04/442,095,988.83 = 296,954,187.34/x
  3. Step 3: Cross multiply
    320,378,778.04x = 442,095,988.83 × 296,954,187.34
  4. Step 4: Simplify right side
    320,378,778.04x = 131,282,255,089,286,352
  5. Step 5: Solve for x
    x = 131,282,255,089,286,352/320,378,778.04
  6. Step 6: Final answer
    x = 409,772,007.66

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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.