Home / 21,957,971.85-30,301,631.19-12,168,396.09

Finding the Fourth Proportional to 21,957,971.85, 30,301,631.19 and 12,168,396.09

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Solution

The fourth proportional to 21,957,971.85, 30,301,631.19 and 12,168,396.09 is: 16,792,181.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957,971.85 : 30,301,631.19 = 12,168,396.09 : x
  2. Step 2: Convert to fraction form
    21,957,971.85/30,301,631.19 = 12,168,396.09/x
  3. Step 3: Cross multiply
    21,957,971.85x = 30,301,631.19 × 12,168,396.09
  4. Step 4: Simplify right side
    21,957,971.85x = 368,722,250,493,018.06
  5. Step 5: Solve for x
    x = 368,722,250,493,018.06/21,957,971.85
  6. Step 6: Final answer
    x = 16,792,181.58

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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.