Finding the Fourth Proportional to 5,120,648.71, 7,684,752.57 and 2,424,968.71
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Solution
The fourth proportional to 5,120,648.71, 7,684,752.57 and 2,424,968.71 is: 3,639,242.91
Step by Step Solution
- Step 1: Write the proportion equation
5,120,648.71 : 7,684,752.57 = 2,424,968.71 : x - Step 2: Convert to fraction form
5,120,648.71/7,684,752.57 = 2,424,968.71/x - Step 3: Cross multiply
5,120,648.71x = 7,684,752.57 × 2,424,968.71 - Step 4: Simplify right side
5,120,648.71x = 18,635,284,526,342.09 - Step 5: Solve for x
x = 18,635,284,526,342.09/5,120,648.71 - Step 6: Final answer
x = 3,639,242.91
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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.