Home / 20,823,838.80-31,240,423.80-8,043,205.20

Finding the Fourth Proportional to 20,823,838.80, 31,240,423.80 and 8,043,205.20

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Solution

The fourth proportional to 20,823,838.80, 31,240,423.80 and 8,043,205.20 is: 12,066,609.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823,838.80 : 31,240,423.80 = 8,043,205.20 : x
  2. Step 2: Convert to fraction form
    20,823,838.80/31,240,423.80 = 8,043,205.20/x
  3. Step 3: Cross multiply
    20,823,838.80x = 31,240,423.80 × 8,043,205.20
  4. Step 4: Simplify right side
    20,823,838.80x = 251,273,139,158,363.78
  5. Step 5: Solve for x
    x = 251,273,139,158,363.78/20,823,838.80
  6. Step 6: Final answer
    x = 12,066,609.89

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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.