Finding the Fourth Proportional to 9,207,497.80, 13,811,246.70 and 7,790,321.80
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Solution
The fourth proportional to 9,207,497.80, 13,811,246.70 and 7,790,321.80 is: 11,685,482.70
Step by Step Solution
- Step 1: Write the proportion equation
9,207,497.80 : 13,811,246.70 = 7,790,321.80 : x - Step 2: Convert to fraction form
9,207,497.80/13,811,246.70 = 7,790,321.80/x - Step 3: Cross multiply
9,207,497.80x = 13,811,246.70 × 7,790,321.80 - Step 4: Simplify right side
9,207,497.80x = 107,594,056,252,188.05 - Step 5: Solve for x
x = 107,594,056,252,188.05/9,207,497.80 - Step 6: Final answer
x = 11,685,482.70
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1.5x scale
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.