Home / 393,207,180,088.38-538,684,878,452.15-378,505,795,144.44

Finding the Fourth Proportional to 393,207,180,088.38, 538,684,878,452.15 and 378,505,795,144.44

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Solution

The fourth proportional to 393,207,180,088.38, 538,684,878,452.15 and 378,505,795,144.44 is: 518,544,316,014.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,207,180,088.38 : 538,684,878,452.15 = 378,505,795,144.44 : x
  2. Step 2: Convert to fraction form
    393,207,180,088.38/538,684,878,452.15 = 378,505,795,144.44/x
  3. Step 3: Cross multiply
    393,207,180,088.38x = 538,684,878,452.15 × 378,505,795,144.44
  4. Step 4: Simplify right side
    393,207,180,088.38x = 203,895,348,250,817,075,347,456
  5. Step 5: Solve for x
    x = 203,895,348,250,817,075,347,456/393,207,180,088.38
  6. Step 6: Final answer
    x = 518,544,316,014.24

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.