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Finding the Third Proportional to 6,429,980.75 and 13,869,519.75

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Solution

The third proportional to 6,429,980.75 and 13,869,519.75 is: 29,916,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,429,980.75 : 13,869,519.75 = 13,869,519.75 : x
  2. Step 2: Convert to fraction form
    6,429,980.75/13,869,519.75 = 13,869,519.75/x
  3. Step 3: Cross multiply
    6,429,980.75x = 13,869,519.75 × 13,869,519.75
  4. Step 4: Simplify right side
    6,429,980.75x = 192,363,578,095,640.06
  5. Step 5: Solve for x
    x = 192,363,578,095,640.06/6,429,980.75
  6. Step 6: Final answer
    x = 29,916,664.70

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.