Finding the Fourth Proportional to 7,386,979.20, 11,055,261.60 and 6,190,252.80
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Solution
The fourth proportional to 7,386,979.20, 11,055,261.60 and 6,190,252.80 is: 9,264,255.69
Step by Step Solution
- Step 1: Write the proportion equation
7,386,979.20 : 11,055,261.60 = 6,190,252.80 : x - Step 2: Convert to fraction form
7,386,979.20/11,055,261.60 = 6,190,252.80/x - Step 3: Cross multiply
7,386,979.20x = 11,055,261.60 × 6,190,252.80 - Step 4: Simplify right side
7,386,979.20x = 68,434,864,074,132.48 - Step 5: Solve for x
x = 68,434,864,074,132.48/7,386,979.20 - Step 6: Final answer
x = 9,264,255.69
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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.