Home / 39,874,255.40-55,026,521.43-21,539,540.90

Finding the Fourth Proportional to 39,874,255.40, 55,026,521.43 and 21,539,540.90

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Solution

The fourth proportional to 39,874,255.40, 55,026,521.43 and 21,539,540.90 is: 29,724,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874,255.40 : 55,026,521.43 = 21,539,540.90 : x
  2. Step 2: Convert to fraction form
    39,874,255.40/55,026,521.43 = 21,539,540.90/x
  3. Step 3: Cross multiply
    39,874,255.40x = 55,026,521.43 × 21,539,540.90
  4. Step 4: Simplify right side
    39,874,255.40x = 1,185,246,008,926,211.50
  5. Step 5: Solve for x
    x = 1,185,246,008,926,211.50/39,874,255.40
  6. Step 6: Final answer
    x = 29,724,592.90

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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.