Finding the Fourth Proportional to 7,781,190.74, 10,738,953.99 and 6,472,133.26
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Solution
The fourth proportional to 7,781,190.74, 10,738,953.99 and 6,472,133.26 is: 8,932,301.44
Step by Step Solution
- Step 1: Write the proportion equation
7,781,190.74 : 10,738,953.99 = 6,472,133.26 : x - Step 2: Convert to fraction form
7,781,190.74/10,738,953.99 = 6,472,133.26/x - Step 3: Cross multiply
7,781,190.74x = 10,738,953.99 × 6,472,133.26 - Step 4: Simplify right side
7,781,190.74x = 69,503,941,269,441.33 - Step 5: Solve for x
x = 69,503,941,269,441.33/7,781,190.74 - Step 6: Final answer
x = 8,932,301.44
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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.