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Finding the Third Proportional to 18,438,570 and 39,831,444

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Solution

The third proportional to 18,438,570 and 39,831,444 is: 86,044,846.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,438,570 : 39,831,444 = 39,831,444 : x
  2. Step 2: Convert to fraction form
    18,438,570/39,831,444 = 39,831,444/x
  3. Step 3: Cross multiply
    18,438,570x = 39,831,444 × 39,831,444
  4. Step 4: Simplify right side
    18,438,570x = 1,586,543,931,125,136
  5. Step 5: Solve for x
    x = 1,586,543,931,125,136/18,438,570
  6. Step 6: Final answer
    x = 86,044,846.81

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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.