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Finding the Third Proportional to 66,992,447 and 145,114,308

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Solution

The third proportional to 66,992,447 and 145,114,308 is: 314,336,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,992,447 : 145,114,308 = 145,114,308 : x
  2. Step 2: Convert to fraction form
    66,992,447/145,114,308 = 145,114,308/x
  3. Step 3: Cross multiply
    66,992,447x = 145,114,308 × 145,114,308
  4. Step 4: Simplify right side
    66,992,447x = 21,058,162,386,318,864
  5. Step 5: Solve for x
    x = 21,058,162,386,318,864/66,992,447
  6. Step 6: Final answer
    x = 314,336,366.70

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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.