Finding the Fourth Proportional to 7,185,256,220.80, 10,777,884,331.20 and 4,078,638,467.20
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Solution
The fourth proportional to 7,185,256,220.80, 10,777,884,331.20 and 4,078,638,467.20 is: 6,117,957,700.80
Step by Step Solution
- Step 1: Write the proportion equation
7,185,256,220.80 : 10,777,884,331.20 = 4,078,638,467.20 : x - Step 2: Convert to fraction form
7,185,256,220.80/10,777,884,331.20 = 4,078,638,467.20/x - Step 3: Cross multiply
7,185,256,220.80x = 10,777,884,331.20 × 4,078,638,467.20 - Step 4: Simplify right side
7,185,256,220.80x = 43,959,093,628,264,464,384 - Step 5: Solve for x
x = 43,959,093,628,264,464,384/7,185,256,220.80 - Step 6: Final answer
x = 6,117,957,700.80
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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.