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Finding the Third Proportional to 72,623,767 and 156,724,271

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Solution

The third proportional to 72,623,767 and 156,724,271 is: 338,215,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,623,767 : 156,724,271 = 156,724,271 : x
  2. Step 2: Convert to fraction form
    72,623,767/156,724,271 = 156,724,271/x
  3. Step 3: Cross multiply
    72,623,767x = 156,724,271 × 156,724,271
  4. Step 4: Simplify right side
    72,623,767x = 24,562,497,120,481,440
  5. Step 5: Solve for x
    x = 24,562,497,120,481,440/72,623,767
  6. Step 6: Final answer
    x = 338,215,685.24

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.