Home / 18,453,109.20-27,679,663.80-7,666,825.20

Finding the Fourth Proportional to 18,453,109.20, 27,679,663.80 and 7,666,825.20

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Solution

The fourth proportional to 18,453,109.20, 27,679,663.80 and 7,666,825.20 is: 11,500,237.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453,109.20 : 27,679,663.80 = 7,666,825.20 : x
  2. Step 2: Convert to fraction form
    18,453,109.20/27,679,663.80 = 7,666,825.20/x
  3. Step 3: Cross multiply
    18,453,109.20x = 27,679,663.80 × 7,666,825.20
  4. Step 4: Simplify right side
    18,453,109.20x = 212,215,143,949,367.78
  5. Step 5: Solve for x
    x = 212,215,143,949,367.78/18,453,109.20
  6. Step 6: Final answer
    x = 11,500,237.80

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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.