Finding the Fourth Proportional to 27,692,975.66, 38,218,607.52 and 15,305,487.80
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Solution
The fourth proportional to 27,692,975.66, 38,218,607.52 and 15,305,487.80 is: 21,122,844.95
Step by Step Solution
- Step 1: Write the proportion equation
27,692,975.66 : 38,218,607.52 = 15,305,487.80 : x - Step 2: Convert to fraction form
27,692,975.66/38,218,607.52 = 15,305,487.80/x - Step 3: Cross multiply
27,692,975.66x = 38,218,607.52 × 15,305,487.80 - Step 4: Simplify right side
27,692,975.66x = 584,954,431,130,348.38 - Step 5: Solve for x
x = 584,954,431,130,348.38/27,692,975.66 - Step 6: Final answer
x = 21,122,844.95
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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.