Finding the Fourth Proportional to 18,112,334,972.72, 27,180,912,649.28 and 6,321,453,442.88
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Solution
The fourth proportional to 18,112,334,972.72, 27,180,912,649.28 and 6,321,453,442.88 is: 9,486,511,490.99
Step by Step Solution
- Step 1: Write the proportion equation
18,112,334,972.72 : 27,180,912,649.28 = 6,321,453,442.88 : x - Step 2: Convert to fraction form
18,112,334,972.72/27,180,912,649.28 = 6,321,453,442.88/x - Step 3: Cross multiply
18,112,334,972.72x = 27,180,912,649.28 × 6,321,453,442.88 - Step 4: Simplify right side
18,112,334,972.72x = 171,822,873,847,411,605,504 - Step 5: Solve for x
x = 171,822,873,847,411,605,504/18,112,334,972.72 - Step 6: Final answer
x = 9,486,511,490.99
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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.