Home / 20,964,233.80-31,433,520.30-8,169,992.20

Finding the Fourth Proportional to 20,964,233.80, 31,433,520.30 and 8,169,992.20

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Solution

The fourth proportional to 20,964,233.80, 31,433,520.30 and 8,169,992.20 is: 12,249,988.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,964,233.80 : 31,433,520.30 = 8,169,992.20 : x
  2. Step 2: Convert to fraction form
    20,964,233.80/31,433,520.30 = 8,169,992.20/x
  3. Step 3: Cross multiply
    20,964,233.80x = 31,433,520.30 × 8,169,992.20
  4. Step 4: Simplify right side
    20,964,233.80x = 256,811,615,669,541.69
  5. Step 5: Solve for x
    x = 256,811,615,669,541.69/20,964,233.80
  6. Step 6: Final answer
    x = 12,249,988.15

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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.