Finding the Fourth Proportional to 5,424,661.92, 8,136,992.79 and 4,227,479.88
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Solution
The fourth proportional to 5,424,661.92, 8,136,992.79 and 4,227,479.88 is: 6,341,219.75
Step by Step Solution
- Step 1: Write the proportion equation
5,424,661.92 : 8,136,992.79 = 4,227,479.88 : x - Step 2: Convert to fraction form
5,424,661.92/8,136,992.79 = 4,227,479.88/x - Step 3: Cross multiply
5,424,661.92x = 8,136,992.79 × 4,227,479.88 - Step 4: Simplify right side
5,424,661.92x = 34,398,973,303,430.06 - Step 5: Solve for x
x = 34,398,973,303,430.06/5,424,661.92 - Step 6: Final answer
x = 6,341,219.75
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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.