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Finding the Fourth Proportional to 11,988,458.73, 17,978,223.81 and 4,310,008.35

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Solution

The fourth proportional to 11,988,458.73, 17,978,223.81 and 4,310,008.35 is: 6,463,407.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988,458.73 : 17,978,223.81 = 4,310,008.35 : x
  2. Step 2: Convert to fraction form
    11,988,458.73/17,978,223.81 = 4,310,008.35/x
  3. Step 3: Cross multiply
    11,988,458.73x = 17,978,223.81 × 4,310,008.35
  4. Step 4: Simplify right side
    11,988,458.73x = 77,486,294,739,268.80
  5. Step 5: Solve for x
    x = 77,486,294,739,268.80/11,988,458.73
  6. Step 6: Final answer
    x = 6,463,407.56

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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.