Finding the Fourth Proportional to 10,288,788.81, 15,431,680.67 and 3,000,290.10
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Solution
The fourth proportional to 10,288,788.81, 15,431,680.67 and 3,000,290.10 is: 4,499,996.99
Step by Step Solution
- Step 1: Write the proportion equation
10,288,788.81 : 15,431,680.67 = 3,000,290.10 : x - Step 2: Convert to fraction form
10,288,788.81/15,431,680.67 = 3,000,290.10/x - Step 3: Cross multiply
10,288,788.81x = 15,431,680.67 × 3,000,290.10 - Step 4: Simplify right side
10,288,788.81x = 46,299,518,725,560.91 - Step 5: Solve for x
x = 46,299,518,725,560.91/10,288,788.81 - Step 6: Final answer
x = 4,499,996.99
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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.