Home / 18,453,053.70-27,679,580.55-7,666,769.70

Finding the Fourth Proportional to 18,453,053.70, 27,679,580.55 and 7,666,769.70

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Solution

The fourth proportional to 18,453,053.70, 27,679,580.55 and 7,666,769.70 is: 11,500,154.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453,053.70 : 27,679,580.55 = 7,666,769.70 : x
  2. Step 2: Convert to fraction form
    18,453,053.70/27,679,580.55 = 7,666,769.70/x
  3. Step 3: Cross multiply
    18,453,053.70x = 27,679,580.55 × 7,666,769.70
  4. Step 4: Simplify right side
    18,453,053.70x = 212,212,969,469,449.34
  5. Step 5: Solve for x
    x = 212,212,969,469,449.34/18,453,053.70
  6. Step 6: Final answer
    x = 11,500,154.55

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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.