Finding the Fourth Proportional to 20,273,419.44, 27,970,307.58 and 15,373,537.20
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Solution
The fourth proportional to 20,273,419.44, 27,970,307.58 and 15,373,537.20 is: 21,210,164.64
Step by Step Solution
- Step 1: Write the proportion equation
20,273,419.44 : 27,970,307.58 = 15,373,537.20 : x - Step 2: Convert to fraction form
20,273,419.44/27,970,307.58 = 15,373,537.20/x - Step 3: Cross multiply
20,273,419.44x = 27,970,307.58 × 15,373,537.20 - Step 4: Simplify right side
20,273,419.44x = 430,002,564,076,571.94 - Step 5: Solve for x
x = 430,002,564,076,571.94/20,273,419.44 - Step 6: Final answer
x = 21,210,164.64
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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.