Home / 20,996,760.25-28,975,529.15-11,338,968.25

Finding the Fourth Proportional to 20,996,760.25, 28,975,529.15 and 11,338,968.25

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Solution

The fourth proportional to 20,996,760.25, 28,975,529.15 and 11,338,968.25 is: 15,647,776.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,760.25 : 28,975,529.15 = 11,338,968.25 : x
  2. Step 2: Convert to fraction form
    20,996,760.25/28,975,529.15 = 11,338,968.25/x
  3. Step 3: Cross multiply
    20,996,760.25x = 28,975,529.15 × 11,338,968.25
  4. Step 4: Simplify right side
    20,996,760.25x = 328,552,605,058,799.50
  5. Step 5: Solve for x
    x = 328,552,605,058,799.50/20,996,760.25
  6. Step 6: Final answer
    x = 15,647,776.19

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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.