Home / 21,026,561.12-31,545,168.78-6,454,219.42

Finding the Fourth Proportional to 21,026,561.12, 31,545,168.78 and 6,454,219.42

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Solution

The fourth proportional to 21,026,561.12, 31,545,168.78 and 6,454,219.42 is: 9,682,964.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,026,561.12 : 31,545,168.78 = 6,454,219.42 : x
  2. Step 2: Convert to fraction form
    21,026,561.12/31,545,168.78 = 6,454,219.42/x
  3. Step 3: Cross multiply
    21,026,561.12x = 31,545,168.78 × 6,454,219.42
  4. Step 4: Simplify right side
    21,026,561.12x = 203,599,440,974,383.50
  5. Step 5: Solve for x
    x = 203,599,440,974,383.50/21,026,561.12
  6. Step 6: Final answer
    x = 9,682,964.31

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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.