Home / 21,902,203.56-30,215,907.72-12,607,549.68

Finding the Fourth Proportional to 21,902,203.56, 30,215,907.72 and 12,607,549.68

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Solution

The fourth proportional to 21,902,203.56, 30,215,907.72 and 12,607,549.68 is: 17,393,161.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,902,203.56 : 30,215,907.72 = 12,607,549.68 : x
  2. Step 2: Convert to fraction form
    21,902,203.56/30,215,907.72 = 12,607,549.68/x
  3. Step 3: Cross multiply
    21,902,203.56x = 30,215,907.72 × 12,607,549.68
  4. Step 4: Simplify right side
    21,902,203.56x = 380,948,557,706,195.50
  5. Step 5: Solve for x
    x = 380,948,557,706,195.50/21,902,203.56
  6. Step 6: Final answer
    x = 17,393,161.23

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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.