Home / 18,739,972.80-28,109,959.20-5,961,769.20

Finding the Fourth Proportional to 18,739,972.80, 28,109,959.20 and 5,961,769.20

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Solution

The fourth proportional to 18,739,972.80, 28,109,959.20 and 5,961,769.20 is: 8,942,653.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,739,972.80 : 28,109,959.20 = 5,961,769.20 : x
  2. Step 2: Convert to fraction form
    18,739,972.80/28,109,959.20 = 5,961,769.20/x
  3. Step 3: Cross multiply
    18,739,972.80x = 28,109,959.20 × 5,961,769.20
  4. Step 4: Simplify right side
    18,739,972.80x = 167,585,088,971,816.66
  5. Step 5: Solve for x
    x = 167,585,088,971,816.66/18,739,972.80
  6. Step 6: Final answer
    x = 8,942,653.80

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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.