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Finding the Third Proportional to 30,363,986 and 66,118,927

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Solution

The third proportional to 30,363,986 and 66,118,927 is: 143,976,897.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,363,986 : 66,118,927 = 66,118,927 : x
  2. Step 2: Convert to fraction form
    30,363,986/66,118,927 = 66,118,927/x
  3. Step 3: Cross multiply
    30,363,986x = 66,118,927 × 66,118,927
  4. Step 4: Simplify right side
    30,363,986x = 4,371,712,507,631,329
  5. Step 5: Solve for x
    x = 4,371,712,507,631,329/30,363,986
  6. Step 6: Final answer
    x = 143,976,897.75

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.