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Finding the Third Proportional to 72,558,519 and 157,871,136

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Solution

The third proportional to 72,558,519 and 157,871,136 is: 343,492,341.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,558,519 : 157,871,136 = 157,871,136 : x
  2. Step 2: Convert to fraction form
    72,558,519/157,871,136 = 157,871,136/x
  3. Step 3: Cross multiply
    72,558,519x = 157,871,136 × 157,871,136
  4. Step 4: Simplify right side
    72,558,519x = 24,923,295,581,930,496
  5. Step 5: Solve for x
    x = 24,923,295,581,930,496/72,558,519
  6. Step 6: Final answer
    x = 343,492,341.43

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.