Home / 21,033,177.92-31,553,857.07-8,078,380.74

Finding the Fourth Proportional to 21,033,177.92, 31,553,857.07 and 8,078,380.74

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Solution

The fourth proportional to 21,033,177.92, 31,553,857.07 and 8,078,380.74 is: 12,119,142.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,033,177.92 : 31,553,857.07 = 8,078,380.74 : x
  2. Step 2: Convert to fraction form
    21,033,177.92/31,553,857.07 = 8,078,380.74/x
  3. Step 3: Cross multiply
    21,033,177.92x = 31,553,857.07 × 8,078,380.74
  4. Step 4: Simplify right side
    21,033,177.92x = 254,904,071,186,608.94
  5. Step 5: Solve for x
    x = 254,904,071,186,608.94/21,033,177.92
  6. Step 6: Final answer
    x = 12,119,142.06

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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.