Home / 21,109,498.47-31,666,609.67-6,729,229.89

Finding the Fourth Proportional to 21,109,498.47, 31,666,609.67 and 6,729,229.89

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Solution

The fourth proportional to 21,109,498.47, 31,666,609.67 and 6,729,229.89 is: 10,094,597.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,109,498.47 : 31,666,609.67 = 6,729,229.89 : x
  2. Step 2: Convert to fraction form
    21,109,498.47/31,666,609.67 = 6,729,229.89/x
  3. Step 3: Cross multiply
    21,109,498.47x = 31,666,609.67 × 6,729,229.89
  4. Step 4: Simplify right side
    21,109,498.47x = 213,091,896,272,680.88
  5. Step 5: Solve for x
    x = 213,091,896,272,680.88/21,109,498.47
  6. Step 6: Final answer
    x = 10,094,597.77

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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.