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Finding the Third Proportional to 139,239,772 and 301,620,920

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Solution

The third proportional to 139,239,772 and 301,620,920 is: 653,370,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,239,772 : 301,620,920 = 301,620,920 : x
  2. Step 2: Convert to fraction form
    139,239,772/301,620,920 = 301,620,920/x
  3. Step 3: Cross multiply
    139,239,772x = 301,620,920 × 301,620,920
  4. Step 4: Simplify right side
    139,239,772x = 90,975,179,381,646,400
  5. Step 5: Solve for x
    x = 90,975,179,381,646,400/139,239,772
  6. Step 6: Final answer
    x = 653,370,643.14

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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.