Home / 18,783,080.70-28,174,621.05-6,811,496.70

Finding the Fourth Proportional to 18,783,080.70, 28,174,621.05 and 6,811,496.70

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Solution

The fourth proportional to 18,783,080.70, 28,174,621.05 and 6,811,496.70 is: 10,217,245.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783,080.70 : 28,174,621.05 = 6,811,496.70 : x
  2. Step 2: Convert to fraction form
    18,783,080.70/28,174,621.05 = 6,811,496.70/x
  3. Step 3: Cross multiply
    18,783,080.70x = 28,174,621.05 × 6,811,496.70
  4. Step 4: Simplify right side
    18,783,080.70x = 191,911,338,305,825.53
  5. Step 5: Solve for x
    x = 191,911,338,305,825.53/18,783,080.70
  6. Step 6: Final answer
    x = 10,217,245.05

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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.