Finding the Fourth Proportional to 3,989,757,171.60, 5,985,202,627.80 and 1,229,098,323.60
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Solution
The fourth proportional to 3,989,757,171.60, 5,985,202,627.80 and 1,229,098,323.60 is: 1,843,822,117.45
Step by Step Solution
- Step 1: Write the proportion equation
3,989,757,171.60 : 5,985,202,627.80 = 1,229,098,323.60 : x - Step 2: Convert to fraction form
3,989,757,171.60/5,985,202,627.80 = 1,229,098,323.60/x - Step 3: Cross multiply
3,989,757,171.60x = 5,985,202,627.80 × 1,229,098,323.60 - Step 4: Simplify right side
3,989,757,171.60x = 7,356,402,516,235,294,720 - Step 5: Solve for x
x = 7,356,402,516,235,294,720/3,989,757,171.60 - Step 6: Final answer
x = 1,843,822,117.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.