Home / 21,282,551.15-29,369,786.79-11,993,105.18

Finding the Fourth Proportional to 21,282,551.15, 29,369,786.79 and 11,993,105.18

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Solution

The fourth proportional to 21,282,551.15, 29,369,786.79 and 11,993,105.18 is: 16,550,409.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282,551.15 : 29,369,786.79 = 11,993,105.18 : x
  2. Step 2: Convert to fraction form
    21,282,551.15/29,369,786.79 = 11,993,105.18/x
  3. Step 3: Cross multiply
    21,282,551.15x = 29,369,786.79 × 11,993,105.18
  4. Step 4: Simplify right side
    21,282,551.15x = 352,234,941,938,640.31
  5. Step 5: Solve for x
    x = 352,234,941,938,640.31/21,282,551.15
  6. Step 6: Final answer
    x = 16,550,409.75

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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.