Finding the Fourth Proportional to 7,492,605.20, 11,205,730.20 and 6,298,211.60
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Solution
The fourth proportional to 7,492,605.20, 11,205,730.20 and 6,298,211.60 is: 9,419,428.63
Step by Step Solution
- Step 1: Write the proportion equation
7,492,605.20 : 11,205,730.20 = 6,298,211.60 : x - Step 2: Convert to fraction form
7,492,605.20/11,205,730.20 = 6,298,211.60/x - Step 3: Cross multiply
7,492,605.20x = 11,205,730.20 × 6,298,211.60 - Step 4: Simplify right side
7,492,605.20x = 70,576,059,932,110.31 - Step 5: Solve for x
x = 70,576,059,932,110.31/7,492,605.20 - Step 6: Final answer
x = 9,419,428.63
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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.