Finding the Fourth Proportional to 215,093,313.80, 322,639,970.70 and 188,219,457.80
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Solution
The fourth proportional to 215,093,313.80, 322,639,970.70 and 188,219,457.80 is: 282,329,186.70
Step by Step Solution
- Step 1: Write the proportion equation
215,093,313.80 : 322,639,970.70 = 188,219,457.80 : x - Step 2: Convert to fraction form
215,093,313.80/322,639,970.70 = 188,219,457.80/x - Step 3: Cross multiply
215,093,313.80x = 322,639,970.70 × 188,219,457.80 - Step 4: Simplify right side
215,093,313.80x = 60,727,120,349,761,888 - Step 5: Solve for x
x = 60,727,120,349,761,888/215,093,313.80 - Step 6: Final answer
x = 282,329,186.70
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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.