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Finding the Third Proportional to 68,679,940 and 147,329,894

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Solution

The third proportional to 68,679,940 and 147,329,894 is: 316,047,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,679,940 : 147,329,894 = 147,329,894 : x
  2. Step 2: Convert to fraction form
    68,679,940/147,329,894 = 147,329,894/x
  3. Step 3: Cross multiply
    68,679,940x = 147,329,894 × 147,329,894
  4. Step 4: Simplify right side
    68,679,940x = 21,706,097,666,051,236
  5. Step 5: Solve for x
    x = 21,706,097,666,051,236/68,679,940
  6. Step 6: Final answer
    x = 316,047,126.22

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.