Finding the Fourth Proportional to 10,128,228.48, 15,192,342.72 and 3,396,623.04
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Solution
The fourth proportional to 10,128,228.48, 15,192,342.72 and 3,396,623.04 is: 5,094,934.56
Step by Step Solution
- Step 1: Write the proportion equation
10,128,228.48 : 15,192,342.72 = 3,396,623.04 : x - Step 2: Convert to fraction form
10,128,228.48/15,192,342.72 = 3,396,623.04/x - Step 3: Cross multiply
10,128,228.48x = 15,192,342.72 × 3,396,623.04 - Step 4: Simplify right side
10,128,228.48x = 51,602,661,314,328.27 - Step 5: Solve for x
x = 51,602,661,314,328.27/10,128,228.48 - Step 6: Final answer
x = 5,094,934.56
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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.