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Finding the Third Proportional to 90,784,858.50 and 188,029,489.50

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Solution

The third proportional to 90,784,858.50 and 188,029,489.50 is: 389,438,167.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,784,858.50 : 188,029,489.50 = 188,029,489.50 : x
  2. Step 2: Convert to fraction form
    90,784,858.50/188,029,489.50 = 188,029,489.50/x
  3. Step 3: Cross multiply
    90,784,858.50x = 188,029,489.50 × 188,029,489.50
  4. Step 4: Simplify right side
    90,784,858.50x = 35,355,088,921,630,612
  5. Step 5: Solve for x
    x = 35,355,088,921,630,612/90,784,858.50
  6. Step 6: Final answer
    x = 389,438,167.40

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.