Home / 21,969,973.40-32,954,960.10-21,074,178.20

Finding the Fourth Proportional to 21,969,973.40, 32,954,960.10 and 21,074,178.20

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Solution

The fourth proportional to 21,969,973.40, 32,954,960.10 and 21,074,178.20 is: 31,611,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,969,973.40 : 32,954,960.10 = 21,074,178.20 : x
  2. Step 2: Convert to fraction form
    21,969,973.40/32,954,960.10 = 21,074,178.20/x
  3. Step 3: Cross multiply
    21,969,973.40x = 32,954,960.10 × 21,074,178.20
  4. Step 4: Simplify right side
    21,969,973.40x = 694,498,701,721,289.88
  5. Step 5: Solve for x
    x = 694,498,701,721,289.88/21,969,973.40
  6. Step 6: Final answer
    x = 31,611,267.30

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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.