Home / 51,383,811-70,903,141.92-28,172,830.08

Finding the Fourth Proportional to 51,383,811, 70,903,141.92 and 28,172,830.08

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Solution

The fourth proportional to 51,383,811, 70,903,141.92 and 28,172,830.08 is: 38,874,932.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,383,811 : 70,903,141.92 = 28,172,830.08 : x
  2. Step 2: Convert to fraction form
    51,383,811/70,903,141.92 = 28,172,830.08/x
  3. Step 3: Cross multiply
    51,383,811x = 70,903,141.92 × 28,172,830.08
  4. Step 4: Simplify right side
    51,383,811x = 1,997,542,169,450,285
  5. Step 5: Solve for x
    x = 1,997,542,169,450,285/51,383,811
  6. Step 6: Final answer
    x = 38,874,932.21

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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.