Home / 21,270,735.09-31,899,410.37-6,890,466.51

Finding the Fourth Proportional to 21,270,735.09, 31,899,410.37 and 6,890,466.51

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Solution

The fourth proportional to 21,270,735.09, 31,899,410.37 and 6,890,466.51 is: 10,333,531.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270,735.09 : 31,899,410.37 = 6,890,466.51 : x
  2. Step 2: Convert to fraction form
    21,270,735.09/31,899,410.37 = 6,890,466.51/x
  3. Step 3: Cross multiply
    21,270,735.09x = 31,899,410.37 × 6,890,466.51
  4. Step 4: Simplify right side
    21,270,735.09x = 219,801,818,843,231.72
  5. Step 5: Solve for x
    x = 219,801,818,843,231.72/21,270,735.09
  6. Step 6: Final answer
    x = 10,333,531.86

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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.