Finding the Fourth Proportional to 13,151,378.08, 18,148,119.82 and 7,270,660.23
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Solution
The fourth proportional to 13,151,378.08, 18,148,119.82 and 7,270,660.23 is: 10,033,078.83
Step by Step Solution
- Step 1: Write the proportion equation
13,151,378.08 : 18,148,119.82 = 7,270,660.23 : x - Step 2: Convert to fraction form
13,151,378.08/18,148,119.82 = 7,270,660.23/x - Step 3: Cross multiply
13,151,378.08x = 18,148,119.82 × 7,270,660.23 - Step 4: Simplify right side
13,151,378.08x = 131,948,813,024,548.77 - Step 5: Solve for x
x = 131,948,813,024,548.77/13,151,378.08 - Step 6: Final answer
x = 10,033,078.83
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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.