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Finding the Third Proportional to 70,912,640 and 155,277,378

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Solution

The third proportional to 70,912,640 and 155,277,378 is: 340,010,809.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,912,640 : 155,277,378 = 155,277,378 : x
  2. Step 2: Convert to fraction form
    70,912,640/155,277,378 = 155,277,378/x
  3. Step 3: Cross multiply
    70,912,640x = 155,277,378 × 155,277,378
  4. Step 4: Simplify right side
    70,912,640x = 24,111,064,118,554,884
  5. Step 5: Solve for x
    x = 24,111,064,118,554,884/70,912,640
  6. Step 6: Final answer
    x = 340,010,809.34

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.