Home / 188,299,940.80-282,449,911.20-67,135,345.60

Finding the Fourth Proportional to 188,299,940.80, 282,449,911.20 and 67,135,345.60

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Solution

The fourth proportional to 188,299,940.80, 282,449,911.20 and 67,135,345.60 is: 100,703,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,299,940.80 : 282,449,911.20 = 67,135,345.60 : x
  2. Step 2: Convert to fraction form
    188,299,940.80/282,449,911.20 = 67,135,345.60/x
  3. Step 3: Cross multiply
    188,299,940.80x = 282,449,911.20 × 67,135,345.60
  4. Step 4: Simplify right side
    188,299,940.80x = 18,962,372,403,101,308
  5. Step 5: Solve for x
    x = 18,962,372,403,101,308/188,299,940.80
  6. Step 6: Final answer
    x = 100,703,018.40

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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.