Home / 215,676,830.40-323,515,245.60-154,454,827.20

Finding the Fourth Proportional to 215,676,830.40, 323,515,245.60 and 154,454,827.20

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Solution

The fourth proportional to 215,676,830.40, 323,515,245.60 and 154,454,827.20 is: 231,682,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,676,830.40 : 323,515,245.60 = 154,454,827.20 : x
  2. Step 2: Convert to fraction form
    215,676,830.40/323,515,245.60 = 154,454,827.20/x
  3. Step 3: Cross multiply
    215,676,830.40x = 323,515,245.60 × 154,454,827.20
  4. Step 4: Simplify right side
    215,676,830.40x = 49,968,491,355,713,560
  5. Step 5: Solve for x
    x = 49,968,491,355,713,560/215,676,830.40
  6. Step 6: Final answer
    x = 231,682,240.80

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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.