Home / 20,823,809.80-31,240,380.30-8,043,176.20

Finding the Fourth Proportional to 20,823,809.80, 31,240,380.30 and 8,043,176.20

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Solution

The fourth proportional to 20,823,809.80, 31,240,380.30 and 8,043,176.20 is: 12,066,566.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823,809.80 : 31,240,380.30 = 8,043,176.20 : x
  2. Step 2: Convert to fraction form
    20,823,809.80/31,240,380.30 = 8,043,176.20/x
  3. Step 3: Cross multiply
    20,823,809.80x = 31,240,380.30 × 8,043,176.20
  4. Step 4: Simplify right side
    20,823,809.80x = 251,271,883,307,908.88
  5. Step 5: Solve for x
    x = 251,271,883,307,908.88/20,823,809.80
  6. Step 6: Final answer
    x = 12,066,566.38

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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.