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Finding the Third Proportional to 100,698,780 and 155,496,538

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Solution

The third proportional to 100,698,780 and 155,496,538 is: 240,113,865.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,698,780 : 155,496,538 = 155,496,538 : x
  2. Step 2: Convert to fraction form
    100,698,780/155,496,538 = 155,496,538/x
  3. Step 3: Cross multiply
    100,698,780x = 155,496,538 × 155,496,538
  4. Step 4: Simplify right side
    100,698,780x = 24,179,173,329,985,444
  5. Step 5: Solve for x
    x = 24,179,173,329,985,444/100,698,780
  6. Step 6: Final answer
    x = 240,113,865.63

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.