Finding the Fourth Proportional to 5,394,780.40, 8,091,133.80 and 1,608,386.80
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Solution
The fourth proportional to 5,394,780.40, 8,091,133.80 and 1,608,386.80 is: 2,412,271.09
Step by Step Solution
- Step 1: Write the proportion equation
5,394,780.40 : 8,091,133.80 = 1,608,386.80 : x - Step 2: Convert to fraction form
5,394,780.40/8,091,133.80 = 1,608,386.80/x - Step 3: Cross multiply
5,394,780.40x = 8,091,133.80 × 1,608,386.80 - Step 4: Simplify right side
5,394,780.40x = 13,013,672,800,953.84 - Step 5: Solve for x
x = 13,013,672,800,953.84/5,394,780.40 - Step 6: Final answer
x = 2,412,271.09
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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.