Finding the Fourth Proportional to 18,346,289.45, 27,519,336.98 and 4,699,409.45
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Solution
The fourth proportional to 18,346,289.45, 27,519,336.98 and 4,699,409.45 is: 7,049,089.28
Step by Step Solution
- Step 1: Write the proportion equation
18,346,289.45 : 27,519,336.98 = 4,699,409.45 : x - Step 2: Convert to fraction form
18,346,289.45/27,519,336.98 = 4,699,409.45/x - Step 3: Cross multiply
18,346,289.45x = 27,519,336.98 × 4,699,409.45 - Step 4: Simplify right side
18,346,289.45x = 129,324,632,238,049.42 - Step 5: Solve for x
x = 129,324,632,238,049.42/18,346,289.45 - Step 6: Final answer
x = 7,049,089.28
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1.5x scale
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.