Home / 381,986,650.81-572,979,261.52-119,691,281.94

Finding the Fourth Proportional to 381,986,650.81, 572,979,261.52 and 119,691,281.94

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Solution

The fourth proportional to 381,986,650.81, 572,979,261.52 and 119,691,281.94 is: 179,536,698.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,986,650.81 : 572,979,261.52 = 119,691,281.94 : x
  2. Step 2: Convert to fraction form
    381,986,650.81/572,979,261.52 = 119,691,281.94/x
  3. Step 3: Cross multiply
    381,986,650.81x = 572,979,261.52 × 119,691,281.94
  4. Step 4: Simplify right side
    381,986,650.81x = 68,580,622,336,363,312
  5. Step 5: Solve for x
    x = 68,580,622,336,363,312/381,986,650.81
  6. Step 6: Final answer
    x = 179,536,698.97

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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.