Home / 21,033,174.92-31,553,852.57-8,078,377.74

Finding the Fourth Proportional to 21,033,174.92, 31,553,852.57 and 8,078,377.74

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Solution

The fourth proportional to 21,033,174.92, 31,553,852.57 and 8,078,377.74 is: 12,119,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033,174.92 : 31,553,852.57 = 8,078,377.74 : x
  2. Step 2: Convert to fraction form
    21,033,174.92/31,553,852.57 = 8,078,377.74/x
  3. Step 3: Cross multiply
    21,033,174.92x = 31,553,852.57 × 8,078,377.74
  4. Step 4: Simplify right side
    21,033,174.92x = 254,903,940,172,337.91
  5. Step 5: Solve for x
    x = 254,903,940,172,337.91/21,033,174.92
  6. Step 6: Final answer
    x = 12,119,137.56

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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.