Finding the Fourth Proportional to 12,556,000.60, 18,847,997.70 and 6,887,296.60
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Solution
The fourth proportional to 12,556,000.60, 18,847,997.70 and 6,887,296.60 is: 10,338,622.51
Step by Step Solution
- Step 1: Write the proportion equation
12,556,000.60 : 18,847,997.70 = 6,887,296.60 : x - Step 2: Convert to fraction form
12,556,000.60/18,847,997.70 = 6,887,296.60/x - Step 3: Cross multiply
12,556,000.60x = 18,847,997.70 × 6,887,296.60 - Step 4: Simplify right side
12,556,000.60x = 129,811,750,476,017.81 - Step 5: Solve for x
x = 129,811,750,476,017.81/12,556,000.60 - Step 6: Final answer
x = 10,338,622.51
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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.