Home / 84,818,251.20-127,227,376.80-20,992,843.20

Finding the Fourth Proportional to 84,818,251.20, 127,227,376.80 and 20,992,843.20

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Solution

The fourth proportional to 84,818,251.20, 127,227,376.80 and 20,992,843.20 is: 31,489,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,818,251.20 : 127,227,376.80 = 20,992,843.20 : x
  2. Step 2: Convert to fraction form
    84,818,251.20/127,227,376.80 = 20,992,843.20/x
  3. Step 3: Cross multiply
    84,818,251.20x = 127,227,376.80 × 20,992,843.20
  4. Step 4: Simplify right side
    84,818,251.20x = 2,670,864,371,909,717.50
  5. Step 5: Solve for x
    x = 2,670,864,371,909,717.50/84,818,251.20
  6. Step 6: Final answer
    x = 31,489,264.80

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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.