Finding the Fourth Proportional to 7,382,190.29, 10,187,512.27 and 4,285,431.09
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Solution
The fourth proportional to 7,382,190.29, 10,187,512.27 and 4,285,431.09 is: 5,913,946.96
Step by Step Solution
- Step 1: Write the proportion equation
7,382,190.29 : 10,187,512.27 = 4,285,431.09 : x - Step 2: Convert to fraction form
7,382,190.29/10,187,512.27 = 4,285,431.09/x - Step 3: Cross multiply
7,382,190.29x = 10,187,512.27 × 4,285,431.09 - Step 4: Simplify right side
7,382,190.29x = 43,657,881,800,900.90 - Step 5: Solve for x
x = 43,657,881,800,900.90/7,382,190.29 - Step 6: Final answer
x = 5,913,946.96
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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.