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Finding the Third Proportional to 18,439,475,790 and 39,675,637,610

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Solution

The third proportional to 18,439,475,790 and 39,675,637,610 is: 85,368,816,211.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439,475,790 : 39,675,637,610 = 39,675,637,610 : x
  2. Step 2: Convert to fraction form
    18,439,475,790/39,675,637,610 = 39,675,637,610/x
  3. Step 3: Cross multiply
    18,439,475,790x = 39,675,637,610 × 39,675,637,610
  4. Step 4: Simplify right side
    18,439,475,790x = 1,574,156,219,760,046,505,984
  5. Step 5: Solve for x
    x = 1,574,156,219,760,046,505,984/18,439,475,790
  6. Step 6: Final answer
    x = 85,368,816,211.89

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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.