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Finding the Third Proportional to 277,125,628 and 387,437,959

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Solution

The third proportional to 277,125,628 and 387,437,959 is: 541,661,098.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,125,628 : 387,437,959 = 387,437,959 : x
  2. Step 2: Convert to fraction form
    277,125,628/387,437,959 = 387,437,959/x
  3. Step 3: Cross multiply
    277,125,628x = 387,437,959 × 387,437,959
  4. Step 4: Simplify right side
    277,125,628x = 150,108,172,074,085,696
  5. Step 5: Solve for x
    x = 150,108,172,074,085,696/277,125,628
  6. Step 6: Final answer
    x = 541,661,098.46

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.