Home / 20,016,116.20-30,012,796.86-7,878,999.88

Finding the Fourth Proportional to 20,016,116.20, 30,012,796.86 and 7,878,999.88

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Solution

The fourth proportional to 20,016,116.20, 30,012,796.86 and 7,878,999.88 is: 11,814,021.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016,116.20 : 30,012,796.86 = 7,878,999.88 : x
  2. Step 2: Convert to fraction form
    20,016,116.20/30,012,796.86 = 7,878,999.88/x
  3. Step 3: Cross multiply
    20,016,116.20x = 30,012,796.86 × 7,878,999.88
  4. Step 4: Simplify right side
    20,016,116.20x = 236,470,822,858,404.38
  5. Step 5: Solve for x
    x = 236,470,822,858,404.38/20,016,116.20
  6. Step 6: Final answer
    x = 11,814,021.29

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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.