Home / 21,954,351.60-30,296,975.40-12,165,429.78

Finding the Fourth Proportional to 21,954,351.60, 30,296,975.40 and 12,165,429.78

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Solution

The fourth proportional to 21,954,351.60, 30,296,975.40 and 12,165,429.78 is: 16,788,276.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954,351.60 : 30,296,975.40 = 12,165,429.78 : x
  2. Step 2: Convert to fraction form
    21,954,351.60/30,296,975.40 = 12,165,429.78/x
  3. Step 3: Cross multiply
    21,954,351.60x = 30,296,975.40 × 12,165,429.78
  4. Step 4: Simplify right side
    21,954,351.60x = 368,575,726,775,087.38
  5. Step 5: Solve for x
    x = 368,575,726,775,087.38/21,954,351.60
  6. Step 6: Final answer
    x = 16,788,276.58

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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.