Finding the Fourth Proportional to 7,192,028.70, 10,778,857.65 and 2,927,378.70
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Solution
The fourth proportional to 7,192,028.70, 10,778,857.65 and 2,927,378.70 is: 4,387,329.31
Step by Step Solution
- Step 1: Write the proportion equation
7,192,028.70 : 10,778,857.65 = 2,927,378.70 : x - Step 2: Convert to fraction form
7,192,028.70/10,778,857.65 = 2,927,378.70/x - Step 3: Cross multiply
7,192,028.70x = 10,778,857.65 × 2,927,378.70 - Step 4: Simplify right side
7,192,028.70x = 31,553,798,294,942.06 - Step 5: Solve for x
x = 31,553,798,294,942.06/7,192,028.70 - Step 6: Final answer
x = 4,387,329.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.