Finding the Fourth Proportional to 1,821,347,675.40, 2,513,467,813.48 and 985,972,245.99
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Solution
The fourth proportional to 1,821,347,675.40, 2,513,467,813.48 and 985,972,245.99 is: 1,360,646,041.81
Step by Step Solution
- Step 1: Write the proportion equation
1,821,347,675.40 : 2,513,467,813.48 = 985,972,245.99 : x - Step 2: Convert to fraction form
1,821,347,675.40/2,513,467,813.48 = 985,972,245.99/x - Step 3: Cross multiply
1,821,347,675.40x = 2,513,467,813.48 × 985,972,245.99 - Step 4: Simplify right side
1,821,347,675.40x = 2,478,209,505,281,493,504 - Step 5: Solve for x
x = 2,478,209,505,281,493,504/1,821,347,675.40 - Step 6: Final answer
x = 1,360,646,041.81
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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.