Finding the Fourth Proportional to 5,613,467.81, 8,420,412.11 and 2,538,873.86
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Solution
The fourth proportional to 5,613,467.81, 8,420,412.11 and 2,538,873.86 is: 3,808,405.94
Step by Step Solution
- Step 1: Write the proportion equation
5,613,467.81 : 8,420,412.11 = 2,538,873.86 : x - Step 2: Convert to fraction form
5,613,467.81/8,420,412.11 = 2,538,873.86/x - Step 3: Cross multiply
5,613,467.81x = 8,420,412.11 × 2,538,873.86 - Step 4: Simplify right side
5,613,467.81x = 21,378,364,141,710.02 - Step 5: Solve for x
x = 21,378,364,141,710.02/5,613,467.81 - Step 6: Final answer
x = 3,808,405.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.