Finding the Fourth Proportional to 7,990,925.58, 11,028,556.62 and 4,506,979.05
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Solution
The fourth proportional to 7,990,925.58, 11,028,556.62 and 4,506,979.05 is: 6,220,239.84
Step by Step Solution
- Step 1: Write the proportion equation
7,990,925.58 : 11,028,556.62 = 4,506,979.05 : x - Step 2: Convert to fraction form
7,990,925.58/11,028,556.62 = 4,506,979.05/x - Step 3: Cross multiply
7,990,925.58x = 11,028,556.62 × 4,506,979.05 - Step 4: Simplify right side
7,990,925.58x = 49,705,473,638,078.80 - Step 5: Solve for x
x = 49,705,473,638,078.80/7,990,925.58 - Step 6: Final answer
x = 6,220,239.84
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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.