Finding the Fourth Proportional to 10,891,924.48, 15,034,968.48 and 8,562,740.32
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Solution
The fourth proportional to 10,891,924.48, 15,034,968.48 and 8,562,740.32 is: 11,819,814.86
Step by Step Solution
- Step 1: Write the proportion equation
10,891,924.48 : 15,034,968.48 = 8,562,740.32 : x - Step 2: Convert to fraction form
10,891,924.48/15,034,968.48 = 8,562,740.32/x - Step 3: Cross multiply
10,891,924.48x = 15,034,968.48 × 8,562,740.32 - Step 4: Simplify right side
10,891,924.48x = 128,740,530,813,625.12 - Step 5: Solve for x
x = 128,740,530,813,625.12/10,891,924.48 - Step 6: Final answer
x = 11,819,814.86
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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.