Finding the Fourth Proportional to 9,102,107.22, 12,560,387.49 and 5,435,161.62
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Solution
The fourth proportional to 9,102,107.22, 12,560,387.49 and 5,435,161.62 is: 7,500,212.24
Step by Step Solution
- Step 1: Write the proportion equation
9,102,107.22 : 12,560,387.49 = 5,435,161.62 : x - Step 2: Convert to fraction form
9,102,107.22/12,560,387.49 = 5,435,161.62/x - Step 3: Cross multiply
9,102,107.22x = 12,560,387.49 × 5,435,161.62 - Step 4: Simplify right side
9,102,107.22x = 68,267,736,017,976.13 - Step 5: Solve for x
x = 68,267,736,017,976.13/9,102,107.22 - Step 6: Final answer
x = 7,500,212.24
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1.5x scale
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.