Finding the Fourth Proportional to 27,703,640.64, 38,230,290.72 and 15,480,598.08
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Solution
The fourth proportional to 27,703,640.64, 38,230,290.72 and 15,480,598.08 is: 21,362,815.55
Step by Step Solution
- Step 1: Write the proportion equation
27,703,640.64 : 38,230,290.72 = 15,480,598.08 : x - Step 2: Convert to fraction form
27,703,640.64/38,230,290.72 = 15,480,598.08/x - Step 3: Cross multiply
27,703,640.64x = 38,230,290.72 × 15,480,598.08 - Step 4: Simplify right side
27,703,640.64x = 591,827,765,117,873.75 - Step 5: Solve for x
x = 591,827,765,117,873.75/27,703,640.64 - Step 6: Final answer
x = 21,362,815.55
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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.