Home / 388,201,219.20-582,301,828.80-206,802,691.20

Finding the Fourth Proportional to 388,201,219.20, 582,301,828.80 and 206,802,691.20

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Solution

The fourth proportional to 388,201,219.20, 582,301,828.80 and 206,802,691.20 is: 310,204,036.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,201,219.20 : 582,301,828.80 = 206,802,691.20 : x
  2. Step 2: Convert to fraction form
    388,201,219.20/582,301,828.80 = 206,802,691.20/x
  3. Step 3: Cross multiply
    388,201,219.20x = 582,301,828.80 × 206,802,691.20
  4. Step 4: Simplify right side
    388,201,219.20x = 120,421,585,286,521,648
  5. Step 5: Solve for x
    x = 120,421,585,286,521,648/388,201,219.20
  6. Step 6: Final answer
    x = 310,204,036.80

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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.