Home / 21,530,686.77-29,713,065.03-11,741,665.05

Finding the Fourth Proportional to 21,530,686.77, 29,713,065.03 and 11,741,665.05

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Solution

The fourth proportional to 21,530,686.77, 29,713,065.03 and 11,741,665.05 is: 16,203,888.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,530,686.77 : 29,713,065.03 = 11,741,665.05 : x
  2. Step 2: Convert to fraction form
    21,530,686.77/29,713,065.03 = 11,741,665.05/x
  3. Step 3: Cross multiply
    21,530,686.77x = 29,713,065.03 × 11,741,665.05
  4. Step 4: Simplify right side
    21,530,686.77x = 348,880,857,191,128.25
  5. Step 5: Solve for x
    x = 348,880,857,191,128.25/21,530,686.77
  6. Step 6: Final answer
    x = 16,203,888.94

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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.