Finding the Fourth Proportional to 5,129,446.64, 7,078,844.80 and 2,837,567.84
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Solution
The fourth proportional to 5,129,446.64, 7,078,844.80 and 2,837,567.84 is: 3,915,958.92
Step by Step Solution
- Step 1: Write the proportion equation
5,129,446.64 : 7,078,844.80 = 2,837,567.84 : x - Step 2: Convert to fraction form
5,129,446.64/7,078,844.80 = 2,837,567.84/x - Step 3: Cross multiply
5,129,446.64x = 7,078,844.80 × 2,837,567.84 - Step 4: Simplify right side
5,129,446.64x = 20,086,702,348,831.23 - Step 5: Solve for x
x = 20,086,702,348,831.23/5,129,446.64 - Step 6: Final answer
x = 3,915,958.92
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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.