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Finding the Third Proportional to 72,717,129 and 115,763,271

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Solution

The third proportional to 72,717,129 and 115,763,271 is: 184,291,309.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,717,129 : 115,763,271 = 115,763,271 : x
  2. Step 2: Convert to fraction form
    72,717,129/115,763,271 = 115,763,271/x
  3. Step 3: Cross multiply
    72,717,129x = 115,763,271 × 115,763,271
  4. Step 4: Simplify right side
    72,717,129x = 13,401,134,912,619,440
  5. Step 5: Solve for x
    x = 13,401,134,912,619,440/72,717,129
  6. Step 6: Final answer
    x = 184,291,309.31

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.