Home / 388,153,471,291.44-584,879,640,314.83-318,958,234,809.36

Finding the Fourth Proportional to 388,153,471,291.44, 584,879,640,314.83 and 318,958,234,809.36

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Solution

The fourth proportional to 388,153,471,291.44, 584,879,640,314.83 and 318,958,234,809.36 is: 480,614,477,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,153,471,291.44 : 584,879,640,314.83 = 318,958,234,809.36 : x
  2. Step 2: Convert to fraction form
    388,153,471,291.44/584,879,640,314.83 = 318,958,234,809.36/x
  3. Step 3: Cross multiply
    388,153,471,291.44x = 584,879,640,314.83 × 318,958,234,809.36
  4. Step 4: Simplify right side
    388,153,471,291.44x = 186,552,177,650,751,548,424,192
  5. Step 5: Solve for x
    x = 186,552,177,650,751,548,424,192/388,153,471,291.44
  6. Step 6: Final answer
    x = 480,614,477,129.54

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.