Finding the Fourth Proportional to 3,121,640,827.74, 4,682,005,448.94 and 910,256,302.62
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Solution
The fourth proportional to 3,121,640,827.74, 4,682,005,448.94 and 910,256,302.62 is: 1,365,251,546.86
Step by Step Solution
- Step 1: Write the proportion equation
3,121,640,827.74 : 4,682,005,448.94 = 910,256,302.62 : x - Step 2: Convert to fraction form
3,121,640,827.74/4,682,005,448.94 = 910,256,302.62/x - Step 3: Cross multiply
3,121,640,827.74x = 4,682,005,448.94 × 910,256,302.62 - Step 4: Simplify right side
3,121,640,827.74x = 4,261,824,968,798,817,280 - Step 5: Solve for x
x = 4,261,824,968,798,817,280/3,121,640,827.74 - Step 6: Final answer
x = 1,365,251,546.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.