Finding the Fourth Proportional to 7,277,285,273.78, 10,042,653,693.66 and 3,935,783,556.02
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Solution
The fourth proportional to 7,277,285,273.78, 10,042,653,693.66 and 3,935,783,556.02 is: 5,431,381,315.88
Step by Step Solution
- Step 1: Write the proportion equation
7,277,285,273.78 : 10,042,653,693.66 = 3,935,783,556.02 : x - Step 2: Convert to fraction form
7,277,285,273.78/10,042,653,693.66 = 3,935,783,556.02/x - Step 3: Cross multiply
7,277,285,273.78x = 10,042,653,693.66 × 3,935,783,556.02 - Step 4: Simplify right side
7,277,285,273.78x = 39,525,711,266,310,545,408 - Step 5: Solve for x
x = 39,525,711,266,310,545,408/7,277,285,273.78 - Step 6: Final answer
x = 5,431,381,315.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.