Finding the Fourth Proportional to 5,366,497.60, 7,405,805.72 and 2,919,129.78
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Solution
The fourth proportional to 5,366,497.60, 7,405,805.72 and 2,919,129.78 is: 4,028,420.33
Step by Step Solution
- Step 1: Write the proportion equation
5,366,497.60 : 7,405,805.72 = 2,919,129.78 : x - Step 2: Convert to fraction form
5,366,497.60/7,405,805.72 = 2,919,129.78/x - Step 3: Cross multiply
5,366,497.60x = 7,405,805.72 × 2,919,129.78 - Step 4: Simplify right side
5,366,497.60x = 21,618,508,029,444.16 - Step 5: Solve for x
x = 21,618,508,029,444.16/5,366,497.60 - Step 6: Final answer
x = 4,028,420.33
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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.