Home / 431,369,116.20-647,053,674.30-189,504,412.20

Finding the Fourth Proportional to 431,369,116.20, 647,053,674.30 and 189,504,412.20

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Solution

The fourth proportional to 431,369,116.20, 647,053,674.30 and 189,504,412.20 is: 284,256,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,369,116.20 : 647,053,674.30 = 189,504,412.20 : x
  2. Step 2: Convert to fraction form
    431,369,116.20/647,053,674.30 = 189,504,412.20/x
  3. Step 3: Cross multiply
    431,369,116.20x = 647,053,674.30 × 189,504,412.20
  4. Step 4: Simplify right side
    431,369,116.20x = 122,619,526,210,071,728
  5. Step 5: Solve for x
    x = 122,619,526,210,071,728/431,369,116.20
  6. Step 6: Final answer
    x = 284,256,618.30

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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.