Finding the Fourth Proportional to 7,676,419.32, 11,511,445.86 and 3,124,378.62
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Solution
The fourth proportional to 7,676,419.32, 11,511,445.86 and 3,124,378.62 is: 4,685,272.37
Step by Step Solution
- Step 1: Write the proportion equation
7,676,419.32 : 11,511,445.86 = 3,124,378.62 : x - Step 2: Convert to fraction form
7,676,419.32/11,511,445.86 = 3,124,378.62/x - Step 3: Cross multiply
7,676,419.32x = 11,511,445.86 × 3,124,378.62 - Step 4: Simplify right side
7,676,419.32x = 35,966,115,330,271.52 - Step 5: Solve for x
x = 35,966,115,330,271.52/7,676,419.32 - Step 6: Final answer
x = 4,685,272.37
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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.