Finding the Fourth Proportional to 4,720,744,791.36, 6,515,480,786.40 and 2,815,628,523.84
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Solution
The fourth proportional to 4,720,744,791.36, 6,515,480,786.40 and 2,815,628,523.84 is: 3,886,076,108.65
Step by Step Solution
- Step 1: Write the proportion equation
4,720,744,791.36 : 6,515,480,786.40 = 2,815,628,523.84 : x - Step 2: Convert to fraction form
4,720,744,791.36/6,515,480,786.40 = 2,815,628,523.84/x - Step 3: Cross multiply
4,720,744,791.36x = 6,515,480,786.40 × 2,815,628,523.84 - Step 4: Simplify right side
4,720,744,791.36x = 18,345,173,548,719,314,944 - Step 5: Solve for x
x = 18,345,173,548,719,314,944/4,720,744,791.36 - Step 6: Final answer
x = 3,886,076,108.65
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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.