Finding the Fourth Proportional to 11,508,311.08, 15,881,987.46 and 6,615,121.96
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Solution
The fourth proportional to 11,508,311.08, 15,881,987.46 and 6,615,121.96 is: 9,129,166.16
Step by Step Solution
- Step 1: Write the proportion equation
11,508,311.08 : 15,881,987.46 = 6,615,121.96 : x - Step 2: Convert to fraction form
11,508,311.08/15,881,987.46 = 6,615,121.96/x - Step 3: Cross multiply
11,508,311.08x = 15,881,987.46 × 6,615,121.96 - Step 4: Simplify right side
11,508,311.08x = 105,061,284,015,090.62 - Step 5: Solve for x
x = 105,061,284,015,090.62/11,508,311.08 - Step 6: Final answer
x = 9,129,166.16
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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.