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Finding the Third Proportional to 10,698,390 and 20,860,719

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Solution

The third proportional to 10,698,390 and 20,860,719 is: 40,676,176.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,698,390 : 20,860,719 = 20,860,719 : x
  2. Step 2: Convert to fraction form
    10,698,390/20,860,719 = 20,860,719/x
  3. Step 3: Cross multiply
    10,698,390x = 20,860,719 × 20,860,719
  4. Step 4: Simplify right side
    10,698,390x = 435,169,597,196,961
  5. Step 5: Solve for x
    x = 435,169,597,196,961/10,698,390
  6. Step 6: Final answer
    x = 40,676,176.25

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.