Home / 291,072,002.80-436,608,004.20-239,415,937.60

Finding the Fourth Proportional to 291,072,002.80, 436,608,004.20 and 239,415,937.60

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Solution

The fourth proportional to 291,072,002.80, 436,608,004.20 and 239,415,937.60 is: 359,123,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,072,002.80 : 436,608,004.20 = 239,415,937.60 : x
  2. Step 2: Convert to fraction form
    291,072,002.80/436,608,004.20 = 239,415,937.60/x
  3. Step 3: Cross multiply
    291,072,002.80x = 436,608,004.20 × 239,415,937.60
  4. Step 4: Simplify right side
    291,072,002.80x = 104,530,914,689,207,728
  5. Step 5: Solve for x
    x = 104,530,914,689,207,728/291,072,002.80
  6. Step 6: Final answer
    x = 359,123,906.40

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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.