Home / 21,069,571.48-29,078,368.33-11,902,804.72

Finding the Fourth Proportional to 21,069,571.48, 29,078,368.33 and 11,902,804.72

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Solution

The fourth proportional to 21,069,571.48, 29,078,368.33 and 11,902,804.72 is: 16,427,203.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,069,571.48 : 29,078,368.33 = 11,902,804.72 : x
  2. Step 2: Convert to fraction form
    21,069,571.48/29,078,368.33 = 11,902,804.72/x
  3. Step 3: Cross multiply
    21,069,571.48x = 29,078,368.33 × 11,902,804.72
  4. Step 4: Simplify right side
    21,069,571.48x = 346,114,139,662,830.62
  5. Step 5: Solve for x
    x = 346,114,139,662,830.62/21,069,571.48
  6. Step 6: Final answer
    x = 16,427,203.57

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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.