Finding the Fourth Proportional to 12,788,748.08, 17,647,924.92 and 6,987,437.36
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Solution
The fourth proportional to 12,788,748.08, 17,647,924.92 and 6,987,437.36 is: 9,642,364.46
Step by Step Solution
- Step 1: Write the proportion equation
12,788,748.08 : 17,647,924.92 = 6,987,437.36 : x - Step 2: Convert to fraction form
12,788,748.08/17,647,924.92 = 6,987,437.36/x - Step 3: Cross multiply
12,788,748.08x = 17,647,924.92 × 6,987,437.36 - Step 4: Simplify right side
12,788,748.08x = 123,313,769,912,483.03 - Step 5: Solve for x
x = 123,313,769,912,483.03/12,788,748.08 - Step 6: Final answer
x = 9,642,364.46
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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.