Home / 20,823,980.80-31,240,636.80-8,043,347.20

Finding the Fourth Proportional to 20,823,980.80, 31,240,636.80 and 8,043,347.20

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Solution

The fourth proportional to 20,823,980.80, 31,240,636.80 and 8,043,347.20 is: 12,066,822.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823,980.80 : 31,240,636.80 = 8,043,347.20 : x
  2. Step 2: Convert to fraction form
    20,823,980.80/31,240,636.80 = 8,043,347.20/x
  3. Step 3: Cross multiply
    20,823,980.80x = 31,240,636.80 × 8,043,347.20
  4. Step 4: Simplify right side
    20,823,980.80x = 251,279,288,531,496.97
  5. Step 5: Solve for x
    x = 251,279,288,531,496.97/20,823,980.80
  6. Step 6: Final answer
    x = 12,066,822.91

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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.