Home / 21,109,536.41-31,666,666.57-6,729,267.83

Finding the Fourth Proportional to 21,109,536.41, 31,666,666.57 and 6,729,267.83

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Solution

The fourth proportional to 21,109,536.41, 31,666,666.57 and 6,729,267.83 is: 10,094,654.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,109,536.41 : 31,666,666.57 = 6,729,267.83 : x
  2. Step 2: Convert to fraction form
    21,109,536.41/31,666,666.57 = 6,729,267.83/x
  3. Step 3: Cross multiply
    21,109,536.41x = 31,666,666.57 × 6,729,267.83
  4. Step 4: Simplify right side
    21,109,536.41x = 213,093,480,457,680.94
  5. Step 5: Solve for x
    x = 213,093,480,457,680.94/21,109,536.41
  6. Step 6: Final answer
    x = 10,094,654.68

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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.