Home / 21,029,640.83-31,558,551.78-7,382,827.75

Finding the Fourth Proportional to 21,029,640.83, 31,558,551.78 and 7,382,827.75

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Solution

The fourth proportional to 21,029,640.83, 31,558,551.78 and 7,382,827.75 is: 11,079,188.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029,640.83 : 31,558,551.78 = 7,382,827.75 : x
  2. Step 2: Convert to fraction form
    21,029,640.83/31,558,551.78 = 7,382,827.75/x
  3. Step 3: Cross multiply
    21,029,640.83x = 31,558,551.78 × 7,382,827.75
  4. Step 4: Simplify right side
    21,029,640.83x = 232,991,351,831,195.91
  5. Step 5: Solve for x
    x = 232,991,351,831,195.91/21,029,640.83
  6. Step 6: Final answer
    x = 11,079,188.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.