Home / 9,163,420.47-12,644,782.78-5,296,192.11

Finding the Fourth Proportional to 9,163,420.47, 12,644,782.78 and 5,296,192.11

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Solution

The fourth proportional to 9,163,420.47, 12,644,782.78 and 5,296,192.11 is: 7,308,318.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163,420.47 : 12,644,782.78 = 5,296,192.11 : x
  2. Step 2: Convert to fraction form
    9,163,420.47/12,644,782.78 = 5,296,192.11/x
  3. Step 3: Cross multiply
    9,163,420.47x = 12,644,782.78 × 5,296,192.11
  4. Step 4: Simplify right side
    9,163,420.47x = 66,969,198,792,099.87
  5. Step 5: Solve for x
    x = 66,969,198,792,099.87/9,163,420.47
  6. Step 6: Final answer
    x = 7,308,318.88

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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.