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Finding the Third Proportional to 66,763,374 and 142,345,278

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Solution

The third proportional to 66,763,374 and 142,345,278 is: 303,492,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,763,374 : 142,345,278 = 142,345,278 : x
  2. Step 2: Convert to fraction form
    66,763,374/142,345,278 = 142,345,278/x
  3. Step 3: Cross multiply
    66,763,374x = 142,345,278 × 142,345,278
  4. Step 4: Simplify right side
    66,763,374x = 20,262,178,168,897,284
  5. Step 5: Solve for x
    x = 20,262,178,168,897,284/66,763,374
  6. Step 6: Final answer
    x = 303,492,423.39

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.