Finding the Fourth Proportional to 7,409,702.80, 10,225,864.20 and 4,146,893.20
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Solution
The fourth proportional to 7,409,702.80, 10,225,864.20 and 4,146,893.20 is: 5,722,978.08
Step by Step Solution
- Step 1: Write the proportion equation
7,409,702.80 : 10,225,864.20 = 4,146,893.20 : x - Step 2: Convert to fraction form
7,409,702.80/10,225,864.20 = 4,146,893.20/x - Step 3: Cross multiply
7,409,702.80x = 10,225,864.20 × 4,146,893.20 - Step 4: Simplify right side
7,409,702.80x = 42,405,566,715,103.44 - Step 5: Solve for x
x = 42,405,566,715,103.44/7,409,702.80 - Step 6: Final answer
x = 5,722,978.08
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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.