Home / 21,069,571.23-29,078,367.98-11,902,804.47

Finding the Fourth Proportional to 21,069,571.23, 29,078,367.98 and 11,902,804.47

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Solution

The fourth proportional to 21,069,571.23, 29,078,367.98 and 11,902,804.47 is: 16,427,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,571.23 : 29,078,367.98 = 11,902,804.47 : x
  2. Step 2: Convert to fraction form
    21,069,571.23/29,078,367.98 = 11,902,804.47/x
  3. Step 3: Cross multiply
    21,069,571.23x = 29,078,367.98 × 11,902,804.47
  4. Step 4: Simplify right side
    21,069,571.23x = 346,114,128,257,014.06
  5. Step 5: Solve for x
    x = 346,114,128,257,014.06/21,069,571.23
  6. Step 6: Final answer
    x = 16,427,203.22

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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.