Home / 21,302,722.11-31,883,676.30-19,388,438.34

Finding the Fourth Proportional to 21,302,722.11, 31,883,676.30 and 19,388,438.34

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Solution

The fourth proportional to 21,302,722.11, 31,883,676.30 and 19,388,438.34 is: 29,018,577.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302,722.11 : 31,883,676.30 = 19,388,438.34 : x
  2. Step 2: Convert to fraction form
    21,302,722.11/31,883,676.30 = 19,388,438.34/x
  3. Step 3: Cross multiply
    21,302,722.11x = 31,883,676.30 × 19,388,438.34
  4. Step 4: Simplify right side
    21,302,722.11x = 618,174,691,995,069.38
  5. Step 5: Solve for x
    x = 618,174,691,995,069.38/21,302,722.11
  6. Step 6: Final answer
    x = 29,018,577.48

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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.