Finding the Fourth Proportional to 1,487,131,181.28, 2,052,267,418.80 and 827,081,750.88
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Solution
The fourth proportional to 1,487,131,181.28, 2,052,267,418.80 and 827,081,750.88 is: 1,141,387,492.50
Step by Step Solution
- Step 1: Write the proportion equation
1,487,131,181.28 : 2,052,267,418.80 = 827,081,750.88 : x - Step 2: Convert to fraction form
1,487,131,181.28/2,052,267,418.80 = 827,081,750.88/x - Step 3: Cross multiply
1,487,131,181.28x = 2,052,267,418.80 × 827,081,750.88 - Step 4: Simplify right side
1,487,131,181.28x = 1,697,392,930,015,082,240 - Step 5: Solve for x
x = 1,697,392,930,015,082,240/1,487,131,181.28 - Step 6: Final answer
x = 1,141,387,492.50
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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.