Home / 21,031,834.80-29,039,304.12-13,593,896.58

Finding the Fourth Proportional to 21,031,834.80, 29,039,304.12 and 13,593,896.58

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Solution

The fourth proportional to 21,031,834.80, 29,039,304.12 and 13,593,896.58 is: 18,769,513.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,834.80 : 29,039,304.12 = 13,593,896.58 : x
  2. Step 2: Convert to fraction form
    21,031,834.80/29,039,304.12 = 13,593,896.58/x
  3. Step 3: Cross multiply
    21,031,834.80x = 29,039,304.12 × 13,593,896.58
  4. Step 4: Simplify right side
    21,031,834.80x = 394,757,296,962,447.94
  5. Step 5: Solve for x
    x = 394,757,296,962,447.94/21,031,834.80
  6. Step 6: Final answer
    x = 18,769,513.01

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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.