Home / 21,522,378.43-29,700,687.31-11,864,586.43

Finding the Fourth Proportional to 21,522,378.43, 29,700,687.31 and 11,864,586.43

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Solution

The fourth proportional to 21,522,378.43, 29,700,687.31 and 11,864,586.43 is: 16,373,021.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522,378.43 : 29,700,687.31 = 11,864,586.43 : x
  2. Step 2: Convert to fraction form
    21,522,378.43/29,700,687.31 = 11,864,586.43/x
  3. Step 3: Cross multiply
    21,522,378.43x = 29,700,687.31 × 11,864,586.43
  4. Step 4: Simplify right side
    21,522,378.43x = 352,386,371,619,899.19
  5. Step 5: Solve for x
    x = 352,386,371,619,899.19/21,522,378.43
  6. Step 6: Final answer
    x = 16,373,021.82

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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.