Finding the Fourth Proportional to 7,238,824.80, 10,862,173.80 and 2,979,423.60
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Solution
The fourth proportional to 7,238,824.80, 10,862,173.80 and 2,979,423.60 is: 4,470,755.66
Step by Step Solution
- Step 1: Write the proportion equation
7,238,824.80 : 10,862,173.80 = 2,979,423.60 : x - Step 2: Convert to fraction form
7,238,824.80/10,862,173.80 = 2,979,423.60/x - Step 3: Cross multiply
7,238,824.80x = 10,862,173.80 × 2,979,423.60 - Step 4: Simplify right side
7,238,824.80x = 32,363,016,967,021.68 - Step 5: Solve for x
x = 32,363,016,967,021.68/7,238,824.80 - Step 6: Final answer
x = 4,470,755.66
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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.