Home / 21,936,138.58-30,271,500.40-12,146,372.06

Finding the Fourth Proportional to 21,936,138.58, 30,271,500.40 and 12,146,372.06

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Solution

The fourth proportional to 21,936,138.58, 30,271,500.40 and 12,146,372.06 is: 16,761,788.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,936,138.58 : 30,271,500.40 = 12,146,372.06 : x
  2. Step 2: Convert to fraction form
    21,936,138.58/30,271,500.40 = 12,146,372.06/x
  3. Step 3: Cross multiply
    21,936,138.58x = 30,271,500.40 × 12,146,372.06
  4. Step 4: Simplify right side
    21,936,138.58x = 367,688,906,718,334.75
  5. Step 5: Solve for x
    x = 367,688,906,718,334.75/21,936,138.58
  6. Step 6: Final answer
    x = 16,761,788.11

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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.