Home / 21,887,254.31-30,203,884.12-11,963,691.72

Finding the Fourth Proportional to 21,887,254.31, 30,203,884.12 and 11,963,691.72

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Solution

The fourth proportional to 21,887,254.31, 30,203,884.12 and 11,963,691.72 is: 16,509,606.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887,254.31 : 30,203,884.12 = 11,963,691.72 : x
  2. Step 2: Convert to fraction form
    21,887,254.31/30,203,884.12 = 11,963,691.72/x
  3. Step 3: Cross multiply
    21,887,254.31x = 30,203,884.12 × 11,963,691.72
  4. Step 4: Simplify right side
    21,887,254.31x = 361,349,958,441,638.81
  5. Step 5: Solve for x
    x = 361,349,958,441,638.81/21,887,254.31
  6. Step 6: Final answer
    x = 16,509,606.61

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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.