Finding the Fourth Proportional to 9,158,423.12, 12,644,538.58 and 5,677,481.84
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Solution
The fourth proportional to 9,158,423.12, 12,644,538.58 and 5,677,481.84 is: 7,838,591.56
Step by Step Solution
- Step 1: Write the proportion equation
9,158,423.12 : 12,644,538.58 = 5,677,481.84 : x - Step 2: Convert to fraction form
9,158,423.12/12,644,538.58 = 5,677,481.84/x - Step 3: Cross multiply
9,158,423.12x = 12,644,538.58 × 5,677,481.84 - Step 4: Simplify right side
9,158,423.12x = 71,789,138,163,129.39 - Step 5: Solve for x
x = 71,789,138,163,129.39/9,158,423.12 - Step 6: Final answer
x = 7,838,591.56
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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.