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Finding the Third Proportional to 30,638,074.50 and 66,382,308

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Solution

The third proportional to 30,638,074.50 and 66,382,308 is: 143,827,929.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,638,074.50 : 66,382,308 = 66,382,308 : x
  2. Step 2: Convert to fraction form
    30,638,074.50/66,382,308 = 66,382,308/x
  3. Step 3: Cross multiply
    30,638,074.50x = 66,382,308 × 66,382,308
  4. Step 4: Simplify right side
    30,638,074.50x = 4,406,610,815,406,864
  5. Step 5: Solve for x
    x = 4,406,610,815,406,864/30,638,074.50
  6. Step 6: Final answer
    x = 143,827,929.38

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.