Home / 20,642,742.96-30,964,540.80-7,511,710.56

Finding the Fourth Proportional to 20,642,742.96, 30,964,540.80 and 7,511,710.56

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Solution

The fourth proportional to 20,642,742.96, 30,964,540.80 and 7,511,710.56 is: 11,267,720.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,642,742.96 : 30,964,540.80 = 7,511,710.56 : x
  2. Step 2: Convert to fraction form
    20,642,742.96/30,964,540.80 = 7,511,710.56/x
  3. Step 3: Cross multiply
    20,642,742.96x = 30,964,540.80 × 7,511,710.56
  4. Step 4: Simplify right side
    20,642,742.96x = 232,596,668,112,910.84
  5. Step 5: Solve for x
    x = 232,596,668,112,910.84/20,642,742.96
  6. Step 6: Final answer
    x = 11,267,720.99

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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.