Finding the Fourth Proportional to 7,707,331.36, 10,611,851.28 and 6,543,475.60
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Solution
The fourth proportional to 7,707,331.36, 10,611,851.28 and 6,543,475.60 is: 9,009,394.65
Step by Step Solution
- Step 1: Write the proportion equation
7,707,331.36 : 10,611,851.28 = 6,543,475.60 : x - Step 2: Convert to fraction form
7,707,331.36/10,611,851.28 = 6,543,475.60/x - Step 3: Cross multiply
7,707,331.36x = 10,611,851.28 × 6,543,475.60 - Step 4: Simplify right side
7,707,331.36x = 69,438,389,921,508.76 - Step 5: Solve for x
x = 69,438,389,921,508.76/7,707,331.36 - Step 6: Final answer
x = 9,009,394.65
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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.