Finding the Fourth Proportional to 7,148,042.76, 9,864,393.84 and 3,884,922.12
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Solution
The fourth proportional to 7,148,042.76, 9,864,393.84 and 3,884,922.12 is: 5,361,244.07
Step by Step Solution
- Step 1: Write the proportion equation
7,148,042.76 : 9,864,393.84 = 3,884,922.12 : x - Step 2: Convert to fraction form
7,148,042.76/9,864,393.84 = 3,884,922.12/x - Step 3: Cross multiply
7,148,042.76x = 9,864,393.84 × 3,884,922.12 - Step 4: Simplify right side
7,148,042.76x = 38,322,401,829,407.74 - Step 5: Solve for x
x = 38,322,401,829,407.74/7,148,042.76 - Step 6: Final answer
x = 5,361,244.07
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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.