Home / 291,008,072.80-436,512,109.20-273,789,384.40

Finding the Fourth Proportional to 291,008,072.80, 436,512,109.20 and 273,789,384.40

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Solution

The fourth proportional to 291,008,072.80, 436,512,109.20 and 273,789,384.40 is: 410,684,076.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,008,072.80 : 436,512,109.20 = 273,789,384.40 : x
  2. Step 2: Convert to fraction form
    291,008,072.80/436,512,109.20 = 273,789,384.40/x
  3. Step 3: Cross multiply
    291,008,072.80x = 436,512,109.20 × 273,789,384.40
  4. Step 4: Simplify right side
    291,008,072.80x = 119,512,381,661,013,568
  5. Step 5: Solve for x
    x = 119,512,381,661,013,568/291,008,072.80
  6. Step 6: Final answer
    x = 410,684,076.60

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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.