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Finding the Third Proportional to 66,056,148 and 138,135,294

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Solution

The third proportional to 66,056,148 and 138,135,294 is: 288,865,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,056,148 : 138,135,294 = 138,135,294 : x
  2. Step 2: Convert to fraction form
    66,056,148/138,135,294 = 138,135,294/x
  3. Step 3: Cross multiply
    66,056,148x = 138,135,294 × 138,135,294
  4. Step 4: Simplify right side
    66,056,148x = 19,081,359,448,466,436
  5. Step 5: Solve for x
    x = 19,081,359,448,466,436/66,056,148
  6. Step 6: Final answer
    x = 288,865,760.81

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.