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Finding the Third Proportional to 30,880,424 and 66,001,520

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Solution

The third proportional to 30,880,424 and 66,001,520 is: 141,066,736.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,880,424 : 66,001,520 = 66,001,520 : x
  2. Step 2: Convert to fraction form
    30,880,424/66,001,520 = 66,001,520/x
  3. Step 3: Cross multiply
    30,880,424x = 66,001,520 × 66,001,520
  4. Step 4: Simplify right side
    30,880,424x = 4,356,200,642,310,400
  5. Step 5: Solve for x
    x = 4,356,200,642,310,400/30,880,424
  6. Step 6: Final answer
    x = 141,066,736.72

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.