Home / 28,156,183.75-38,855,533.58-15,279,127.75

Finding the Fourth Proportional to 28,156,183.75, 38,855,533.58 and 15,279,127.75

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Solution

The fourth proportional to 28,156,183.75, 38,855,533.58 and 15,279,127.75 is: 21,085,196.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,183.75 : 38,855,533.58 = 15,279,127.75 : x
  2. Step 2: Convert to fraction form
    28,156,183.75/38,855,533.58 = 15,279,127.75/x
  3. Step 3: Cross multiply
    28,156,183.75x = 38,855,533.58 × 15,279,127.75
  4. Step 4: Simplify right side
    28,156,183.75x = 593,678,661,286,839.25
  5. Step 5: Solve for x
    x = 593,678,661,286,839.25/28,156,183.75
  6. Step 6: Final answer
    x = 21,085,196.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.