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Finding the Third Proportional to 190,637,388 and 285,699,960

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Solution

The third proportional to 190,637,388 and 285,699,960 is: 428,166,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,637,388 : 285,699,960 = 285,699,960 : x
  2. Step 2: Convert to fraction form
    190,637,388/285,699,960 = 285,699,960/x
  3. Step 3: Cross multiply
    190,637,388x = 285,699,960 × 285,699,960
  4. Step 4: Simplify right side
    190,637,388x = 81,624,467,144,001,600
  5. Step 5: Solve for x
    x = 81,624,467,144,001,600/190,637,388
  6. Step 6: Final answer
    x = 428,166,101.10

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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.