Home / 39,040,690.51-53,876,157.92-21,638,159.23

Finding the Fourth Proportional to 39,040,690.51, 53,876,157.92 and 21,638,159.23

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Solution

The fourth proportional to 39,040,690.51, 53,876,157.92 and 21,638,159.23 is: 29,860,662.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,040,690.51 : 53,876,157.92 = 21,638,159.23 : x
  2. Step 2: Convert to fraction form
    39,040,690.51/53,876,157.92 = 21,638,159.23/x
  3. Step 3: Cross multiply
    39,040,690.51x = 53,876,157.92 × 21,638,159.23
  4. Step 4: Simplify right side
    39,040,690.51x = 1,165,780,883,611,847.50
  5. Step 5: Solve for x
    x = 1,165,780,883,611,847.50/39,040,690.51
  6. Step 6: Final answer
    x = 29,860,662.52

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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.