Finding the Fourth Proportional to 7,465,492.80, 11,189,944.80 and 4,102,113.60
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Solution
The fourth proportional to 7,465,492.80, 11,189,944.80 and 4,102,113.60 is: 6,148,612.82
Step by Step Solution
- Step 1: Write the proportion equation
7,465,492.80 : 11,189,944.80 = 4,102,113.60 : x - Step 2: Convert to fraction form
7,465,492.80/11,189,944.80 = 4,102,113.60/x - Step 3: Cross multiply
7,465,492.80x = 11,189,944.80 × 4,102,113.60 - Step 4: Simplify right side
7,465,492.80x = 45,902,424,747,329.28 - Step 5: Solve for x
x = 45,902,424,747,329.28/7,465,492.80 - Step 6: Final answer
x = 6,148,612.82
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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.