Home / 18,501,311.20-27,751,966.80-12,761,748.40

Finding the Fourth Proportional to 18,501,311.20, 27,751,966.80 and 12,761,748.40

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Solution

The fourth proportional to 18,501,311.20, 27,751,966.80 and 12,761,748.40 is: 19,142,622.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,501,311.20 : 27,751,966.80 = 12,761,748.40 : x
  2. Step 2: Convert to fraction form
    18,501,311.20/27,751,966.80 = 12,761,748.40/x
  3. Step 3: Cross multiply
    18,501,311.20x = 27,751,966.80 × 12,761,748.40
  4. Step 4: Simplify right side
    18,501,311.20x = 354,163,617,906,753.12
  5. Step 5: Solve for x
    x = 354,163,617,906,753.12/18,501,311.20
  6. Step 6: Final answer
    x = 19,142,622.60

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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.