Home / 21,031,833.79-29,039,302.74-13,593,895.57

Finding the Fourth Proportional to 21,031,833.79, 29,039,302.74 and 13,593,895.57

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Solution

The fourth proportional to 21,031,833.79, 29,039,302.74 and 13,593,895.57 is: 18,769,511.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,031,833.79 : 29,039,302.74 = 13,593,895.57 : x
  2. Step 2: Convert to fraction form
    21,031,833.79/29,039,302.74 = 13,593,895.57/x
  3. Step 3: Cross multiply
    21,031,833.79x = 29,039,302.74 × 13,593,895.57
  4. Step 4: Simplify right side
    21,031,833.79x = 394,757,248,873,174.88
  5. Step 5: Solve for x
    x = 394,757,248,873,174.88/21,031,833.79
  6. Step 6: Final answer
    x = 18,769,511.63

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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.