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Finding the Third Proportional to 59,920,623.75 and 128,942,172

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Solution

The third proportional to 59,920,623.75 and 128,942,172 is: 277,468,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,920,623.75 : 128,942,172 = 128,942,172 : x
  2. Step 2: Convert to fraction form
    59,920,623.75/128,942,172 = 128,942,172/x
  3. Step 3: Cross multiply
    59,920,623.75x = 128,942,172 × 128,942,172
  4. Step 4: Simplify right side
    59,920,623.75x = 16,626,083,720,077,584
  5. Step 5: Solve for x
    x = 16,626,083,720,077,584/59,920,623.75
  6. Step 6: Final answer
    x = 277,468,468.78

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.