Finding the Fourth Proportional to 208,672,763.95, 287,957,173.80 and 115,847,292.88
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Solution
The fourth proportional to 208,672,763.95, 287,957,173.80 and 115,847,292.88 is: 159,863,023.90
Step by Step Solution
- Step 1: Write the proportion equation
208,672,763.95 : 287,957,173.80 = 115,847,292.88 : x - Step 2: Convert to fraction form
208,672,763.95/287,957,173.80 = 115,847,292.88/x - Step 3: Cross multiply
208,672,763.95x = 287,957,173.80 × 115,847,292.88 - Step 4: Simplify right side
208,672,763.95x = 33,359,059,050,105,664 - Step 5: Solve for x
x = 33,359,059,050,105,664/208,672,763.95 - Step 6: Final answer
x = 159,863,023.90
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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.