Home / 421,879,877,628.87-582,244,141,974.82-250,602,485,815.47

Finding the Fourth Proportional to 421,879,877,628.87, 582,244,141,974.82 and 250,602,485,815.47

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Solution

The fourth proportional to 421,879,877,628.87, 582,244,141,974.82 and 250,602,485,815.47 is: 345,861,078,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,879,877,628.87 : 582,244,141,974.82 = 250,602,485,815.47 : x
  2. Step 2: Convert to fraction form
    421,879,877,628.87/582,244,141,974.82 = 250,602,485,815.47/x
  3. Step 3: Cross multiply
    421,879,877,628.87x = 582,244,141,974.82 × 250,602,485,815.47
  4. Step 4: Simplify right side
    421,879,877,628.87x = 145,911,829,330,385,321,328,640
  5. Step 5: Solve for x
    x = 145,911,829,330,385,321,328,640/421,879,877,628.87
  6. Step 6: Final answer
    x = 345,861,078,159.18

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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.