Home / 20,317,476.81-30,476,274.33-8,642,840.34

Finding the Fourth Proportional to 20,317,476.81, 30,476,274.33 and 8,642,840.34

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Solution

The fourth proportional to 20,317,476.81, 30,476,274.33 and 8,642,840.34 is: 12,964,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317,476.81 : 30,476,274.33 = 8,642,840.34 : x
  2. Step 2: Convert to fraction form
    20,317,476.81/30,476,274.33 = 8,642,840.34/x
  3. Step 3: Cross multiply
    20,317,476.81x = 30,476,274.33 × 8,642,840.34
  4. Step 4: Simplify right side
    20,317,476.81x = 263,401,573,192,230.44
  5. Step 5: Solve for x
    x = 263,401,573,192,230.44/20,317,476.81
  6. Step 6: Final answer
    x = 12,964,285.66

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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.