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Finding the Third Proportional to 30,856,080 and 66,355,890

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Solution

The third proportional to 30,856,080 and 66,355,890 is: 142,698,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,856,080 : 66,355,890 = 66,355,890 : x
  2. Step 2: Convert to fraction form
    30,856,080/66,355,890 = 66,355,890/x
  3. Step 3: Cross multiply
    30,856,080x = 66,355,890 × 66,355,890
  4. Step 4: Simplify right side
    30,856,080x = 4,403,104,137,692,100
  5. Step 5: Solve for x
    x = 4,403,104,137,692,100/30,856,080
  6. Step 6: Final answer
    x = 142,698,104.80

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.