Finding the Fourth Proportional to 15,736,793.92, 21,718,845.12 and 8,862,619.84
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Solution
The fourth proportional to 15,736,793.92, 21,718,845.12 and 8,862,619.84 is: 12,231,580.88
Step by Step Solution
- Step 1: Write the proportion equation
15,736,793.92 : 21,718,845.12 = 8,862,619.84 : x - Step 2: Convert to fraction form
15,736,793.92/21,718,845.12 = 8,862,619.84/x - Step 3: Cross multiply
15,736,793.92x = 21,718,845.12 × 8,862,619.84 - Step 4: Simplify right side
15,736,793.92x = 192,485,867,662,399.19 - Step 5: Solve for x
x = 192,485,867,662,399.19/15,736,793.92 - Step 6: Final answer
x = 12,231,580.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.