Finding the Fourth Proportional to 5,277,029,847.21, 7,282,273,021.16 and 2,865,691,261.98
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Solution
The fourth proportional to 5,277,029,847.21, 7,282,273,021.16 and 2,865,691,261.98 is: 3,954,638,644.90
Step by Step Solution
- Step 1: Write the proportion equation
5,277,029,847.21 : 7,282,273,021.16 = 2,865,691,261.98 : x - Step 2: Convert to fraction form
5,277,029,847.21/7,282,273,021.16 = 2,865,691,261.98/x - Step 3: Cross multiply
5,277,029,847.21x = 7,282,273,021.16 × 2,865,691,261.98 - Step 4: Simplify right side
5,277,029,847.21x = 20,868,746,164,076,576,768 - Step 5: Solve for x
x = 20,868,746,164,076,576,768/5,277,029,847.21 - Step 6: Final answer
x = 3,954,638,644.90
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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.