Finding the Fourth Proportional to 8,742,296.16, 12,057,585.12 and 7,763,265.12
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Solution
The fourth proportional to 8,742,296.16, 12,057,585.12 and 7,763,265.12 is: 10,707,281.96
Step by Step Solution
- Step 1: Write the proportion equation
8,742,296.16 : 12,057,585.12 = 7,763,265.12 : x - Step 2: Convert to fraction form
8,742,296.16/12,057,585.12 = 7,763,265.12/x - Step 3: Cross multiply
8,742,296.16x = 12,057,585.12 × 7,763,265.12 - Step 4: Simplify right side
8,742,296.16x = 93,606,229,993,527.02 - Step 5: Solve for x
x = 93,606,229,993,527.02/8,742,296.16 - Step 6: Final answer
x = 10,707,281.96
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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.