Home / 805,632,247.20-1,208,946,034.80-320,907,511.20

Finding the Fourth Proportional to 805,632,247.20, 1,208,946,034.80 and 320,907,511.20

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Solution

The fourth proportional to 805,632,247.20, 1,208,946,034.80 and 320,907,511.20 is: 481,559,501.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,632,247.20 : 1,208,946,034.80 = 320,907,511.20 : x
  2. Step 2: Convert to fraction form
    805,632,247.20/1,208,946,034.80 = 320,907,511.20/x
  3. Step 3: Cross multiply
    805,632,247.20x = 1,208,946,034.80 × 320,907,511.20
  4. Step 4: Simplify right side
    805,632,247.20x = 387,959,863,202,776,576
  5. Step 5: Solve for x
    x = 387,959,863,202,776,576/805,632,247.20
  6. Step 6: Final answer
    x = 481,559,501.31

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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.