Home / 199,299,799.20-298,949,698.80-191,647,048.80

Finding the Fourth Proportional to 199,299,799.20, 298,949,698.80 and 191,647,048.80

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Solution

The fourth proportional to 199,299,799.20, 298,949,698.80 and 191,647,048.80 is: 287,470,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,299,799.20 : 298,949,698.80 = 191,647,048.80 : x
  2. Step 2: Convert to fraction form
    199,299,799.20/298,949,698.80 = 191,647,048.80/x
  3. Step 3: Cross multiply
    199,299,799.20x = 298,949,698.80 × 191,647,048.80
  4. Step 4: Simplify right side
    199,299,799.20x = 57,292,827,514,668,904
  5. Step 5: Solve for x
    x = 57,292,827,514,668,904/199,299,799.20
  6. Step 6: Final answer
    x = 287,470,573.20

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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.