Finding the Fourth Proportional to 18,193,459.86, 25,106,315.58 and 9,933,369.84
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Solution
The fourth proportional to 18,193,459.86, 25,106,315.58 and 9,933,369.84 is: 13,707,690.56
Step by Step Solution
- Step 1: Write the proportion equation
18,193,459.86 : 25,106,315.58 = 9,933,369.84 : x - Step 2: Convert to fraction form
18,193,459.86/25,106,315.58 = 9,933,369.84/x - Step 3: Cross multiply
18,193,459.86x = 25,106,315.58 × 9,933,369.84 - Step 4: Simplify right side
18,193,459.86x = 249,390,317,975,894.09 - Step 5: Solve for x
x = 249,390,317,975,894.09/18,193,459.86 - Step 6: Final answer
x = 13,707,690.56
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.