Home / 51,383,808-70,903,137.78-28,172,827.08

Finding the Fourth Proportional to 51,383,808, 70,903,137.78 and 28,172,827.08

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Solution

The fourth proportional to 51,383,808, 70,903,137.78 and 28,172,827.08 is: 38,874,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,383,808 : 70,903,137.78 = 28,172,827.08 : x
  2. Step 2: Convert to fraction form
    51,383,808/70,903,137.78 = 28,172,827.08/x
  3. Step 3: Cross multiply
    51,383,808x = 70,903,137.78 × 28,172,827.08
  4. Step 4: Simplify right side
    51,383,808x = 1,997,541,840,105,355
  5. Step 5: Solve for x
    x = 1,997,541,840,105,355/51,383,808
  6. Step 6: Final answer
    x = 38,874,928.07

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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.