Home / 20,796,830.20-31,195,245.30-9,282,275.20

Finding the Fourth Proportional to 20,796,830.20, 31,195,245.30 and 9,282,275.20

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Solution

The fourth proportional to 20,796,830.20, 31,195,245.30 and 9,282,275.20 is: 13,923,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,830.20 : 31,195,245.30 = 9,282,275.20 : x
  2. Step 2: Convert to fraction form
    20,796,830.20/31,195,245.30 = 9,282,275.20/x
  3. Step 3: Cross multiply
    20,796,830.20x = 31,195,245.30 × 9,282,275.20
  4. Step 4: Simplify right side
    20,796,830.20x = 289,562,851,806,106.56
  5. Step 5: Solve for x
    x = 289,562,851,806,106.56/20,796,830.20
  6. Step 6: Final answer
    x = 13,923,412.80

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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.