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Finding the Third Proportional to 18,440,506 and 40,218,315

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Solution

The third proportional to 18,440,506 and 40,218,315 is: 87,715,210.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,440,506 : 40,218,315 = 40,218,315 : x
  2. Step 2: Convert to fraction form
    18,440,506/40,218,315 = 40,218,315/x
  3. Step 3: Cross multiply
    18,440,506x = 40,218,315 × 40,218,315
  4. Step 4: Simplify right side
    18,440,506x = 1,617,512,861,439,225
  5. Step 5: Solve for x
    x = 1,617,512,861,439,225/18,440,506
  6. Step 6: Final answer
    x = 87,715,210.28

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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.