Finding the Fourth Proportional to 8,278,832.88, 12,420,316.08 and 2,887,560.81
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Solution
The fourth proportional to 8,278,832.88, 12,420,316.08 and 2,887,560.81 is: 4,332,062.08
Step by Step Solution
- Step 1: Write the proportion equation
8,278,832.88 : 12,420,316.08 = 2,887,560.81 : x - Step 2: Convert to fraction form
8,278,832.88/12,420,316.08 = 2,887,560.81/x - Step 3: Cross multiply
8,278,832.88x = 12,420,316.08 × 2,887,560.81 - Step 4: Simplify right side
8,278,832.88x = 35,864,417,960,420.83 - Step 5: Solve for x
x = 35,864,417,960,420.83/8,278,832.88 - Step 6: Final answer
x = 4,332,062.08
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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.