Finding the Fourth Proportional to 6,388,270.80, 9,582,406.20 and 4,587,349.20
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Solution
The fourth proportional to 6,388,270.80, 9,582,406.20 and 4,587,349.20 is: 6,881,023.80
Step by Step Solution
- Step 1: Write the proportion equation
6,388,270.80 : 9,582,406.20 = 4,587,349.20 : x - Step 2: Convert to fraction form
6,388,270.80/9,582,406.20 = 4,587,349.20/x - Step 3: Cross multiply
6,388,270.80x = 9,582,406.20 × 4,587,349.20 - Step 4: Simplify right side
6,388,270.80x = 43,957,843,415,645.04 - Step 5: Solve for x
x = 43,957,843,415,645.04/6,388,270.80 - Step 6: Final answer
x = 6,881,023.80
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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.