Home / 421,879,877,680.78-582,244,142,046.60-250,602,485,867.38

Finding the Fourth Proportional to 421,879,877,680.78, 582,244,142,046.60 and 250,602,485,867.38

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Solution

The fourth proportional to 421,879,877,680.78, 582,244,142,046.60 and 250,602,485,867.38 is: 345,861,078,230.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,879,877,680.78 : 582,244,142,046.60 = 250,602,485,867.38 : x
  2. Step 2: Convert to fraction form
    421,879,877,680.78/582,244,142,046.60 = 250,602,485,867.38/x
  3. Step 3: Cross multiply
    421,879,877,680.78x = 582,244,142,046.60 × 250,602,485,867.38
  4. Step 4: Simplify right side
    421,879,877,680.78x = 145,911,829,378,597,872,730,112
  5. Step 5: Solve for x
    x = 145,911,829,378,597,872,730,112/421,879,877,680.78
  6. Step 6: Final answer
    x = 345,861,078,230.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.