Finding the Fourth Proportional to 5,909,815.80, 8,864,723.70 and 3,915,271.80
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Solution
The fourth proportional to 5,909,815.80, 8,864,723.70 and 3,915,271.80 is: 5,872,907.70
Step by Step Solution
- Step 1: Write the proportion equation
5,909,815.80 : 8,864,723.70 = 3,915,271.80 : x - Step 2: Convert to fraction form
5,909,815.80/8,864,723.70 = 3,915,271.80/x - Step 3: Cross multiply
5,909,815.80x = 8,864,723.70 × 3,915,271.80 - Step 4: Simplify right side
5,909,815.80x = 34,707,802,717,401.66 - Step 5: Solve for x
x = 34,707,802,717,401.66/5,909,815.80 - Step 6: Final answer
x = 5,872,907.70
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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.