Home / 20,422,907.97-28,183,127.55-11,130,771.43

Finding the Fourth Proportional to 20,422,907.97, 28,183,127.55 and 11,130,771.43

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Solution

The fourth proportional to 20,422,907.97, 28,183,127.55 and 11,130,771.43 is: 15,360,200.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,907.97 : 28,183,127.55 = 11,130,771.43 : x
  2. Step 2: Convert to fraction form
    20,422,907.97/28,183,127.55 = 11,130,771.43/x
  3. Step 3: Cross multiply
    20,422,907.97x = 28,183,127.55 × 11,130,771.43
  4. Step 4: Simplify right side
    20,422,907.97x = 313,699,950,935,074.44
  5. Step 5: Solve for x
    x = 313,699,950,935,074.44/20,422,907.97
  6. Step 6: Final answer
    x = 15,360,200.00

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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.