Finding the Fourth Proportional to 7,984,798.20, 11,972,823.30 and 3,932,374.68
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Solution
The fourth proportional to 7,984,798.20, 11,972,823.30 and 3,932,374.68 is: 5,896,407.90
Step by Step Solution
- Step 1: Write the proportion equation
7,984,798.20 : 11,972,823.30 = 3,932,374.68 : x - Step 2: Convert to fraction form
7,984,798.20/11,972,823.30 = 3,932,374.68/x - Step 3: Cross multiply
7,984,798.20x = 11,972,823.30 × 3,932,374.68 - Step 4: Simplify right side
7,984,798.20x = 47,081,627,193,034.05 - Step 5: Solve for x
x = 47,081,627,193,034.05/7,984,798.20 - Step 6: Final answer
x = 5,896,407.90
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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.