Home / 18,028,761.80-24,879,777.87-9,768,821.90

Finding the Fourth Proportional to 18,028,761.80, 24,879,777.87 and 9,768,821.90

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Solution

The fourth proportional to 18,028,761.80, 24,879,777.87 and 9,768,821.90 is: 13,481,021.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,028,761.80 : 24,879,777.87 = 9,768,821.90 : x
  2. Step 2: Convert to fraction form
    18,028,761.80/24,879,777.87 = 9,768,821.90/x
  3. Step 3: Cross multiply
    18,028,761.80x = 24,879,777.87 × 9,768,821.90
  4. Step 4: Simplify right side
    18,028,761.80x = 243,046,118,799,192.47
  5. Step 5: Solve for x
    x = 243,046,118,799,192.47/18,028,761.80
  6. Step 6: Final answer
    x = 13,481,021.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.