Finding the Fourth Proportional to 144,512,702.12, 199,427,724.88 and 78,433,202.44
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Solution
The fourth proportional to 144,512,702.12, 199,427,724.88 and 78,433,202.44 is: 108,237,925.72
Step by Step Solution
- Step 1: Write the proportion equation
144,512,702.12 : 199,427,724.88 = 78,433,202.44 : x - Step 2: Convert to fraction form
144,512,702.12/199,427,724.88 = 78,433,202.44/x - Step 3: Cross multiply
144,512,702.12x = 199,427,724.88 × 78,433,202.44 - Step 4: Simplify right side
144,512,702.12x = 15,641,755,117,661,664 - Step 5: Solve for x
x = 15,641,755,117,661,664/144,512,702.12 - Step 6: Final answer
x = 108,237,925.72
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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.