Home / 388,153,471,291.94-584,879,640,315.56-318,958,234,809.86

Finding the Fourth Proportional to 388,153,471,291.94, 584,879,640,315.56 and 318,958,234,809.86

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Solution

The fourth proportional to 388,153,471,291.94, 584,879,640,315.56 and 318,958,234,809.86 is: 480,614,477,130.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,153,471,291.94 : 584,879,640,315.56 = 318,958,234,809.86 : x
  2. Step 2: Convert to fraction form
    388,153,471,291.94/584,879,640,315.56 = 318,958,234,809.86/x
  3. Step 3: Cross multiply
    388,153,471,291.94x = 584,879,640,315.56 × 318,958,234,809.86
  4. Step 4: Simplify right side
    388,153,471,291.94x = 186,552,177,651,276,843,057,152
  5. Step 5: Solve for x
    x = 186,552,177,651,276,843,057,152/388,153,471,291.94
  6. Step 6: Final answer
    x = 480,614,477,130.28

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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.