Home / 215,814,400.70-323,721,601.05-79,552,928.30

Finding the Fourth Proportional to 215,814,400.70, 323,721,601.05 and 79,552,928.30

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Solution

The fourth proportional to 215,814,400.70, 323,721,601.05 and 79,552,928.30 is: 119,329,392.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,814,400.70 : 323,721,601.05 = 79,552,928.30 : x
  2. Step 2: Convert to fraction form
    215,814,400.70/323,721,601.05 = 79,552,928.30/x
  3. Step 3: Cross multiply
    215,814,400.70x = 323,721,601.05 × 79,552,928.30
  4. Step 4: Simplify right side
    215,814,400.70x = 25,753,001,317,491,856
  5. Step 5: Solve for x
    x = 25,753,001,317,491,856/215,814,400.70
  6. Step 6: Final answer
    x = 119,329,392.45

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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.