Home / 20,577,871.29-28,395,415.79-11,878,846.43

Finding the Fourth Proportional to 20,577,871.29, 28,395,415.79 and 11,878,846.43

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Solution

The fourth proportional to 20,577,871.29, 28,395,415.79 and 11,878,846.43 is: 16,391,626.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,871.29 : 28,395,415.79 = 11,878,846.43 : x
  2. Step 2: Convert to fraction form
    20,577,871.29/28,395,415.79 = 11,878,846.43/x
  3. Step 3: Cross multiply
    20,577,871.29x = 28,395,415.79 × 11,878,846.43
  4. Step 4: Simplify right side
    20,577,871.29x = 337,304,783,328,581.50
  5. Step 5: Solve for x
    x = 337,304,783,328,581.50/20,577,871.29
  6. Step 6: Final answer
    x = 16,391,626.64

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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.