Home / 38,469,781.70-53,086,704.41-21,065,827.06

Finding the Fourth Proportional to 38,469,781.70, 53,086,704.41 and 21,065,827.06

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Solution

The fourth proportional to 38,469,781.70, 53,086,704.41 and 21,065,827.06 is: 29,069,968.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,469,781.70 : 53,086,704.41 = 21,065,827.06 : x
  2. Step 2: Convert to fraction form
    38,469,781.70/53,086,704.41 = 21,065,827.06/x
  3. Step 3: Cross multiply
    38,469,781.70x = 53,086,704.41 × 21,065,827.06
  4. Step 4: Simplify right side
    38,469,781.70x = 1,118,315,334,554,702.12
  5. Step 5: Solve for x
    x = 1,118,315,334,554,702.12/38,469,781.70
  6. Step 6: Final answer
    x = 29,069,968.30

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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.