Finding the Fourth Proportional to 27,727,319.96, 38,260,755.76 and 15,335,444.24
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Solution
The fourth proportional to 27,727,319.96, 38,260,755.76 and 15,335,444.24 is: 21,161,283.79
Step by Step Solution
- Step 1: Write the proportion equation
27,727,319.96 : 38,260,755.76 = 15,335,444.24 : x - Step 2: Convert to fraction form
27,727,319.96/38,260,755.76 = 15,335,444.24/x - Step 3: Cross multiply
27,727,319.96x = 38,260,755.76 × 15,335,444.24 - Step 4: Simplify right side
27,727,319.96x = 586,745,686,537,738.75 - Step 5: Solve for x
x = 586,745,686,537,738.75/27,727,319.96 - Step 6: Final answer
x = 21,161,283.79
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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.