Home / 21,849,997.92-30,156,032.88-12,192,828

Finding the Fourth Proportional to 21,849,997.92, 30,156,032.88 and 12,192,828

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Solution

The fourth proportional to 21,849,997.92, 30,156,032.88 and 12,192,828 is: 16,827,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,849,997.92 : 30,156,032.88 = 12,192,828 : x
  2. Step 2: Convert to fraction form
    21,849,997.92/30,156,032.88 = 12,192,828/x
  3. Step 3: Cross multiply
    21,849,997.92x = 30,156,032.88 × 12,192,828
  4. Step 4: Simplify right side
    21,849,997.92x = 367,687,322,068,184.62
  5. Step 5: Solve for x
    x = 367,687,322,068,184.62/21,849,997.92
  6. Step 6: Final answer
    x = 16,827,796.66

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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.