Home / 387,895,337.60-582,514,852.80-206,496,809.60

Finding the Fourth Proportional to 387,895,337.60, 582,514,852.80 and 206,496,809.60

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Solution

The fourth proportional to 387,895,337.60, 582,514,852.80 and 206,496,809.60 is: 310,102,873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,895,337.60 : 582,514,852.80 = 206,496,809.60 : x
  2. Step 2: Convert to fraction form
    387,895,337.60/582,514,852.80 = 206,496,809.60/x
  3. Step 3: Cross multiply
    387,895,337.60x = 582,514,852.80 × 206,496,809.60
  4. Step 4: Simplify right side
    387,895,337.60x = 120,287,458,647,813,616
  5. Step 5: Solve for x
    x = 120,287,458,647,813,616/387,895,337.60
  6. Step 6: Final answer
    x = 310,102,873.09

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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.