Home / 21,969,967.40-32,954,951.10-21,074,172.20

Finding the Fourth Proportional to 21,969,967.40, 32,954,951.10 and 21,074,172.20

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Solution

The fourth proportional to 21,969,967.40, 32,954,951.10 and 21,074,172.20 is: 31,611,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969,967.40 : 32,954,951.10 = 21,074,172.20 : x
  2. Step 2: Convert to fraction form
    21,969,967.40/32,954,951.10 = 21,074,172.20/x
  3. Step 3: Cross multiply
    21,969,967.40x = 32,954,951.10 × 21,074,172.20
  4. Step 4: Simplify right side
    21,969,967.40x = 694,498,314,323,979.38
  5. Step 5: Solve for x
    x = 694,498,314,323,979.38/21,969,967.40
  6. Step 6: Final answer
    x = 31,611,258.30

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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.