Home / 21,181,743.15-31,777,367.81-6,805,629.87

Finding the Fourth Proportional to 21,181,743.15, 31,777,367.81 and 6,805,629.87

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Solution

The fourth proportional to 21,181,743.15, 31,777,367.81 and 6,805,629.87 is: 10,209,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181,743.15 : 31,777,367.81 = 6,805,629.87 : x
  2. Step 2: Convert to fraction form
    21,181,743.15/31,777,367.81 = 6,805,629.87/x
  3. Step 3: Cross multiply
    21,181,743.15x = 31,777,367.81 × 6,805,629.87
  4. Step 4: Simplify right side
    21,181,743.15x = 216,265,003,523,684.34
  5. Step 5: Solve for x
    x = 216,265,003,523,684.34/21,181,743.15
  6. Step 6: Final answer
    x = 10,209,971.96

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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.