Home / 18,453,077.20-27,679,615.80-7,666,793.20

Finding the Fourth Proportional to 18,453,077.20, 27,679,615.80 and 7,666,793.20

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Solution

The fourth proportional to 18,453,077.20, 27,679,615.80 and 7,666,793.20 is: 11,500,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453,077.20 : 27,679,615.80 = 7,666,793.20 : x
  2. Step 2: Convert to fraction form
    18,453,077.20/27,679,615.80 = 7,666,793.20/x
  3. Step 3: Cross multiply
    18,453,077.20x = 27,679,615.80 × 7,666,793.20
  4. Step 4: Simplify right side
    18,453,077.20x = 212,213,890,194,052.56
  5. Step 5: Solve for x
    x = 212,213,890,194,052.56/18,453,077.20
  6. Step 6: Final answer
    x = 11,500,189.80

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1.5x scale

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.