Finding the Fourth Proportional to 10,405,986.20, 14,350,719.30 and 8,935,394.62
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Solution
The fourth proportional to 10,405,986.20, 14,350,719.30 and 8,935,394.62 is: 12,322,651.36
Step by Step Solution
- Step 1: Write the proportion equation
10,405,986.20 : 14,350,719.30 = 8,935,394.62 : x - Step 2: Convert to fraction form
10,405,986.20/14,350,719.30 = 8,935,394.62/x - Step 3: Cross multiply
10,405,986.20x = 14,350,719.30 × 8,935,394.62 - Step 4: Simplify right side
10,405,986.20x = 128,229,340,026,350.16 - Step 5: Solve for x
x = 128,229,340,026,350.16/10,405,986.20 - Step 6: Final answer
x = 12,322,651.36
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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.