Home / 20,872,302.21-31,299,275.21-8,567,817.39

Finding the Fourth Proportional to 20,872,302.21, 31,299,275.21 and 8,567,817.39

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Solution

The fourth proportional to 20,872,302.21, 31,299,275.21 and 8,567,817.39 is: 12,847,958.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872,302.21 : 31,299,275.21 = 8,567,817.39 : x
  2. Step 2: Convert to fraction form
    20,872,302.21/31,299,275.21 = 8,567,817.39/x
  3. Step 3: Cross multiply
    20,872,302.21x = 31,299,275.21 × 8,567,817.39
  4. Step 4: Simplify right side
    20,872,302.21x = 268,166,474,395,794.81
  5. Step 5: Solve for x
    x = 268,166,474,395,794.81/20,872,302.21
  6. Step 6: Final answer
    x = 12,847,958.59

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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.