Finding the Fourth Proportional to 1,468,203,419.40, 2,202,305,129.10 and 887,728,129.80
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Solution
The fourth proportional to 1,468,203,419.40, 2,202,305,129.10 and 887,728,129.80 is: 1,331,592,194.70
Step by Step Solution
- Step 1: Write the proportion equation
1,468,203,419.40 : 2,202,305,129.10 = 887,728,129.80 : x - Step 2: Convert to fraction form
1,468,203,419.40/2,202,305,129.10 = 887,728,129.80/x - Step 3: Cross multiply
1,468,203,419.40x = 2,202,305,129.10 × 887,728,129.80 - Step 4: Simplify right side
1,468,203,419.40x = 1,955,048,213,504,890,368 - Step 5: Solve for x
x = 1,955,048,213,504,890,368/1,468,203,419.40 - Step 6: Final answer
x = 1,331,592,194.70
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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.