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Finding the Third Proportional to 138,751,235 and 308,525,056

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Solution

The third proportional to 138,751,235 and 308,525,056 is: 686,031,444.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,751,235 : 308,525,056 = 308,525,056 : x
  2. Step 2: Convert to fraction form
    138,751,235/308,525,056 = 308,525,056/x
  3. Step 3: Cross multiply
    138,751,235x = 308,525,056 × 308,525,056
  4. Step 4: Simplify right side
    138,751,235x = 95,187,710,179,803,136
  5. Step 5: Solve for x
    x = 95,187,710,179,803,136/138,751,235
  6. Step 6: Final answer
    x = 686,031,444.55

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.