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Finding the Third Proportional to 20,909,580 and 45,293,658

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Solution

The third proportional to 20,909,580 and 45,293,658 is: 98,113,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,909,580 : 45,293,658 = 45,293,658 : x
  2. Step 2: Convert to fraction form
    20,909,580/45,293,658 = 45,293,658/x
  3. Step 3: Cross multiply
    20,909,580x = 45,293,658 × 45,293,658
  4. Step 4: Simplify right side
    20,909,580x = 2,051,515,455,020,964
  5. Step 5: Solve for x
    x = 2,051,515,455,020,964/20,909,580
  6. Step 6: Final answer
    x = 98,113,661.54

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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.