Home / 683,752,671.20-1,025,629,006.80-199,094,290.40

Finding the Fourth Proportional to 683,752,671.20, 1,025,629,006.80 and 199,094,290.40

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Solution

The fourth proportional to 683,752,671.20, 1,025,629,006.80 and 199,094,290.40 is: 298,641,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,752,671.20 : 1,025,629,006.80 = 199,094,290.40 : x
  2. Step 2: Convert to fraction form
    683,752,671.20/1,025,629,006.80 = 199,094,290.40/x
  3. Step 3: Cross multiply
    683,752,671.20x = 1,025,629,006.80 × 199,094,290.40
  4. Step 4: Simplify right side
    683,752,671.20x = 204,196,879,322,502,784
  5. Step 5: Solve for x
    x = 204,196,879,322,502,784/683,752,671.20
  6. Step 6: Final answer
    x = 298,641,435.60

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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.