Home / 21,143,531.72-31,712,592.18-6,765,396.68

Finding the Fourth Proportional to 21,143,531.72, 31,712,592.18 and 6,765,396.68

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Solution

The fourth proportional to 21,143,531.72, 31,712,592.18 and 6,765,396.68 is: 10,147,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,143,531.72 : 31,712,592.18 = 6,765,396.68 : x
  2. Step 2: Convert to fraction form
    21,143,531.72/31,712,592.18 = 6,765,396.68/x
  3. Step 3: Cross multiply
    21,143,531.72x = 31,712,592.18 × 6,765,396.68
  4. Step 4: Simplify right side
    21,143,531.72x = 214,548,265,848,765.94
  5. Step 5: Solve for x
    x = 214,548,265,848,765.94/21,143,531.72
  6. Step 6: Final answer
    x = 10,147,229.36

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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.