Home / 315,022,879.60-472,534,319.40-206,183,762.80

Finding the Fourth Proportional to 315,022,879.60, 472,534,319.40 and 206,183,762.80

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Solution

The fourth proportional to 315,022,879.60, 472,534,319.40 and 206,183,762.80 is: 309,275,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,022,879.60 : 472,534,319.40 = 206,183,762.80 : x
  2. Step 2: Convert to fraction form
    315,022,879.60/472,534,319.40 = 206,183,762.80/x
  3. Step 3: Cross multiply
    315,022,879.60x = 472,534,319.40 × 206,183,762.80
  4. Step 4: Simplify right side
    315,022,879.60x = 97,428,904,026,029,040
  5. Step 5: Solve for x
    x = 97,428,904,026,029,040/315,022,879.60
  6. Step 6: Final answer
    x = 309,275,644.20

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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.