Finding the Fourth Proportional to 7,781,188.07, 10,738,950.36 and 6,472,130.60
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Solution
The fourth proportional to 7,781,188.07, 10,738,950.36 and 6,472,130.60 is: 8,932,297.82
Step by Step Solution
- Step 1: Write the proportion equation
7,781,188.07 : 10,738,950.36 = 6,472,130.60 : x - Step 2: Convert to fraction form
7,781,188.07/10,738,950.36 = 6,472,130.60/x - Step 3: Cross multiply
7,781,188.07x = 10,738,950.36 × 6,472,130.60 - Step 4: Simplify right side
7,781,188.07x = 69,503,889,236,837.01 - Step 5: Solve for x
x = 69,503,889,236,837.01/7,781,188.07 - Step 6: Final answer
x = 8,932,297.82
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1.5x scale
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.