Home / 820,170,172.44-1,131,830,764.38-443,826,495

Finding the Fourth Proportional to 820,170,172.44, 1,131,830,764.38 and 443,826,495

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Solution

The fourth proportional to 820,170,172.44, 1,131,830,764.38 and 443,826,495 is: 612,478,358.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,170,172.44 : 1,131,830,764.38 = 443,826,495 : x
  2. Step 2: Convert to fraction form
    820,170,172.44/1,131,830,764.38 = 443,826,495/x
  3. Step 3: Cross multiply
    820,170,172.44x = 1,131,830,764.38 × 443,826,495
  4. Step 4: Simplify right side
    820,170,172.44x = 502,336,481,087,946,304
  5. Step 5: Solve for x
    x = 502,336,481,087,946,304/820,170,172.44
  6. Step 6: Final answer
    x = 612,478,358.72

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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.