Home / 15,289,989.34-21,100,179.20-8,414,471.40

Finding the Fourth Proportional to 15,289,989.34, 21,100,179.20 and 8,414,471.40

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Solution

The fourth proportional to 15,289,989.34, 21,100,179.20 and 8,414,471.40 is: 11,611,967.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289,989.34 : 21,100,179.20 = 8,414,471.40 : x
  2. Step 2: Convert to fraction form
    15,289,989.34/21,100,179.20 = 8,414,471.40/x
  3. Step 3: Cross multiply
    15,289,989.34x = 21,100,179.20 × 8,414,471.40
  4. Step 4: Simplify right side
    15,289,989.34x = 177,546,854,413,274.88
  5. Step 5: Solve for x
    x = 177,546,854,413,274.88/15,289,989.34
  6. Step 6: Final answer
    x = 11,611,967.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.