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Finding the Third Proportional to 18,830,967.75 and 39,921,801.75

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Solution

The third proportional to 18,830,967.75 and 39,921,801.75 is: 84,634,537.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,830,967.75 : 39,921,801.75 = 39,921,801.75 : x
  2. Step 2: Convert to fraction form
    18,830,967.75/39,921,801.75 = 39,921,801.75/x
  3. Step 3: Cross multiply
    18,830,967.75x = 39,921,801.75 × 39,921,801.75
  4. Step 4: Simplify right side
    18,830,967.75x = 1,593,750,254,966,303
  5. Step 5: Solve for x
    x = 1,593,750,254,966,303/18,830,967.75
  6. Step 6: Final answer
    x = 84,634,537.97

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.