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Finding the Third Proportional to 190,637,396 and 285,699,972

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Solution

The third proportional to 190,637,396 and 285,699,972 is: 428,166,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,637,396 : 285,699,972 = 285,699,972 : x
  2. Step 2: Convert to fraction form
    190,637,396/285,699,972 = 285,699,972/x
  3. Step 3: Cross multiply
    190,637,396x = 285,699,972 × 285,699,972
  4. Step 4: Simplify right side
    190,637,396x = 81,624,474,000,800,784
  5. Step 5: Solve for x
    x = 81,624,474,000,800,784/190,637,396
  6. Step 6: Final answer
    x = 428,166,119.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.