Home / 21,985,009.20-33,009,006.60-12,419,071.20

Finding the Fourth Proportional to 21,985,009.20, 33,009,006.60 and 12,419,071.20

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Solution

The fourth proportional to 21,985,009.20, 33,009,006.60 and 12,419,071.20 is: 18,646,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,985,009.20 : 33,009,006.60 = 12,419,071.20 : x
  2. Step 2: Convert to fraction form
    21,985,009.20/33,009,006.60 = 12,419,071.20/x
  3. Step 3: Cross multiply
    21,985,009.20x = 33,009,006.60 × 12,419,071.20
  4. Step 4: Simplify right side
    21,985,009.20x = 409,941,203,206,669.94
  5. Step 5: Solve for x
    x = 409,941,203,206,669.94/21,985,009.20
  6. Step 6: Final answer
    x = 18,646,396.71

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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.