Home / 19,950,359-27,531,507.21-11,129,810.32

Finding the Fourth Proportional to 19,950,359, 27,531,507.21 and 11,129,810.32

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Solution

The fourth proportional to 19,950,359, 27,531,507.21 and 11,129,810.32 is: 15,359,144.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,950,359 : 27,531,507.21 = 11,129,810.32 : x
  2. Step 2: Convert to fraction form
    19,950,359/27,531,507.21 = 11,129,810.32/x
  3. Step 3: Cross multiply
    19,950,359x = 27,531,507.21 × 11,129,810.32
  4. Step 4: Simplify right side
    19,950,359x = 306,420,452,933,354.88
  5. Step 5: Solve for x
    x = 306,420,452,933,354.88/19,950,359
  6. Step 6: Final answer
    x = 15,359,144.81

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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.