Home / 431,077,704.52-647,025,356.58-266,818,591.66

Finding the Fourth Proportional to 431,077,704.52, 647,025,356.58 and 266,818,591.66

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Solution

The fourth proportional to 431,077,704.52, 647,025,356.58 and 266,818,591.66 is: 400,480,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,077,704.52 : 647,025,356.58 = 266,818,591.66 : x
  2. Step 2: Convert to fraction form
    431,077,704.52/647,025,356.58 = 266,818,591.66/x
  3. Step 3: Cross multiply
    431,077,704.52x = 647,025,356.58 × 266,818,591.66
  4. Step 4: Simplify right side
    431,077,704.52x = 172,638,394,410,984,928
  5. Step 5: Solve for x
    x = 172,638,394,410,984,928/431,077,704.52
  6. Step 6: Final answer
    x = 400,480,917.02

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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.