Home / 279,354,288.78-418,770,879.66-94,995,782.64

Finding the Fourth Proportional to 279,354,288.78, 418,770,879.66 and 94,995,782.64

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Solution

The fourth proportional to 279,354,288.78, 418,770,879.66 and 94,995,782.64 is: 142,405,071.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,354,288.78 : 418,770,879.66 = 94,995,782.64 : x
  2. Step 2: Convert to fraction form
    279,354,288.78/418,770,879.66 = 94,995,782.64/x
  3. Step 3: Cross multiply
    279,354,288.78x = 418,770,879.66 × 94,995,782.64
  4. Step 4: Simplify right side
    279,354,288.78x = 39,781,467,460,142,960
  5. Step 5: Solve for x
    x = 39,781,467,460,142,960/279,354,288.78
  6. Step 6: Final answer
    x = 142,405,071.47

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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.