Home / 18,453,003.70-27,679,505.55-7,666,719.70

Finding the Fourth Proportional to 18,453,003.70, 27,679,505.55 and 7,666,719.70

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Solution

The fourth proportional to 18,453,003.70, 27,679,505.55 and 7,666,719.70 is: 11,500,079.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453,003.70 : 27,679,505.55 = 7,666,719.70 : x
  2. Step 2: Convert to fraction form
    18,453,003.70/27,679,505.55 = 7,666,719.70/x
  3. Step 3: Cross multiply
    18,453,003.70x = 27,679,505.55 × 7,666,719.70
  4. Step 4: Simplify right side
    18,453,003.70x = 212,211,010,486,444.34
  5. Step 5: Solve for x
    x = 212,211,010,486,444.34/18,453,003.70
  6. Step 6: Final answer
    x = 11,500,079.55

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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.