Finding the Fourth Proportional to 1,318,035,069.20, 1,977,052,603.80 and 1,170,081,894.80
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Solution
The fourth proportional to 1,318,035,069.20, 1,977,052,603.80 and 1,170,081,894.80 is: 1,755,122,842.20
Step by Step Solution
- Step 1: Write the proportion equation
1,318,035,069.20 : 1,977,052,603.80 = 1,170,081,894.80 : x - Step 2: Convert to fraction form
1,318,035,069.20/1,977,052,603.80 = 1,170,081,894.80/x - Step 3: Cross multiply
1,318,035,069.20x = 1,977,052,603.80 × 1,170,081,894.80 - Step 4: Simplify right side
1,318,035,069.20x = 2,313,313,456,773,577,728 - Step 5: Solve for x
x = 2,313,313,456,773,577,728/1,318,035,069.20 - Step 6: Final answer
x = 1,755,122,842.20
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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.