Finding the Fourth Proportional to 18,448,370.80, 27,680,429.40 and 8,858,813.20
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Solution
The fourth proportional to 18,448,370.80, 27,680,429.40 and 8,858,813.20 is: 13,292,000.47
Step by Step Solution
- Step 1: Write the proportion equation
18,448,370.80 : 27,680,429.40 = 8,858,813.20 : x - Step 2: Convert to fraction form
18,448,370.80/27,680,429.40 = 8,858,813.20/x - Step 3: Cross multiply
18,448,370.80x = 27,680,429.40 × 8,858,813.20 - Step 4: Simplify right side
18,448,370.80x = 245,215,753,350,388.03 - Step 5: Solve for x
x = 245,215,753,350,388.03/18,448,370.80 - Step 6: Final answer
x = 13,292,000.47
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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.