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Finding the Third Proportional to 3,928,330,620 and 8,510,509,440

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Solution

The third proportional to 3,928,330,620 and 8,510,509,440 is: 18,437,544,579.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,330,620 : 8,510,509,440 = 8,510,509,440 : x
  2. Step 2: Convert to fraction form
    3,928,330,620/8,510,509,440 = 8,510,509,440/x
  3. Step 3: Cross multiply
    3,928,330,620x = 8,510,509,440 × 8,510,509,440
  4. Step 4: Simplify right side
    3,928,330,620x = 72,428,770,928,329,113,600
  5. Step 5: Solve for x
    x = 72,428,770,928,329,113,600/3,928,330,620
  6. Step 6: Final answer
    x = 18,437,544,579.26

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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.