Home / 239,047,891.20-358,571,836.80-218,640,556.80

Finding the Fourth Proportional to 239,047,891.20, 358,571,836.80 and 218,640,556.80

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Solution

The fourth proportional to 239,047,891.20, 358,571,836.80 and 218,640,556.80 is: 327,960,835.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,047,891.20 : 358,571,836.80 = 218,640,556.80 : x
  2. Step 2: Convert to fraction form
    239,047,891.20/358,571,836.80 = 218,640,556.80/x
  3. Step 3: Cross multiply
    239,047,891.20x = 358,571,836.80 × 218,640,556.80
  4. Step 4: Simplify right side
    239,047,891.20x = 78,398,346,050,750,736
  5. Step 5: Solve for x
    x = 78,398,346,050,750,736/239,047,891.20
  6. Step 6: Final answer
    x = 327,960,835.20

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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.