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Finding the Third Proportional to 7,777,752 and 12,173,220

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Solution

The third proportional to 7,777,752 and 12,173,220 is: 19,052,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777,752 : 12,173,220 = 12,173,220 : x
  2. Step 2: Convert to fraction form
    7,777,752/12,173,220 = 12,173,220/x
  3. Step 3: Cross multiply
    7,777,752x = 12,173,220 × 12,173,220
  4. Step 4: Simplify right side
    7,777,752x = 148,187,285,168,400
  5. Step 5: Solve for x
    x = 148,187,285,168,400/7,777,752
  6. Step 6: Final answer
    x = 19,052,714.10

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.