Finding the Fourth Proportional to 12,307,530.70, 18,461,296.05 and 8,276,452.30
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Solution
The fourth proportional to 12,307,530.70, 18,461,296.05 and 8,276,452.30 is: 12,414,678.45
Step by Step Solution
- Step 1: Write the proportion equation
12,307,530.70 : 18,461,296.05 = 8,276,452.30 : x - Step 2: Convert to fraction form
12,307,530.70/18,461,296.05 = 8,276,452.30/x - Step 3: Cross multiply
12,307,530.70x = 18,461,296.05 × 8,276,452.30 - Step 4: Simplify right side
12,307,530.70x = 152,794,036,154,003.41 - Step 5: Solve for x
x = 152,794,036,154,003.41/12,307,530.70 - Step 6: Final answer
x = 12,414,678.45
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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.