Finding the Fourth Proportional to 759,125,772.55, 1,138,738,622.42 and 198,901,319.39
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Solution
The fourth proportional to 759,125,772.55, 1,138,738,622.42 and 198,901,319.39 is: 298,365,070.23
Step by Step Solution
- Step 1: Write the proportion equation
759,125,772.55 : 1,138,738,622.42 = 198,901,319.39 : x - Step 2: Convert to fraction form
759,125,772.55/1,138,738,622.42 = 198,901,319.39/x - Step 3: Cross multiply
759,125,772.55x = 1,138,738,622.42 × 198,901,319.39 - Step 4: Simplify right side
759,125,772.55x = 226,496,614,439,689,024 - Step 5: Solve for x
x = 226,496,614,439,689,024/759,125,772.55 - Step 6: Final answer
x = 298,365,070.23
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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.