Home / 21,910,727.77-30,227,299.80-13,203,952.72

Finding the Fourth Proportional to 21,910,727.77, 30,227,299.80 and 13,203,952.72

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Solution

The fourth proportional to 21,910,727.77, 30,227,299.80 and 13,203,952.72 is: 18,215,727.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,910,727.77 : 30,227,299.80 = 13,203,952.72 : x
  2. Step 2: Convert to fraction form
    21,910,727.77/30,227,299.80 = 13,203,952.72/x
  3. Step 3: Cross multiply
    21,910,727.77x = 30,227,299.80 × 13,203,952.72
  4. Step 4: Simplify right side
    21,910,727.77x = 399,119,837,412,465.50
  5. Step 5: Solve for x
    x = 399,119,837,412,465.50/21,910,727.77
  6. Step 6: Final answer
    x = 18,215,727.09

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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.