Finding the Fourth Proportional to 268,107,138.48, 369,985,318.08 and 149,026,608.48
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Solution
The fourth proportional to 268,107,138.48, 369,985,318.08 and 149,026,608.48 is: 205,655,311.73
Step by Step Solution
- Step 1: Write the proportion equation
268,107,138.48 : 369,985,318.08 = 149,026,608.48 : x - Step 2: Convert to fraction form
268,107,138.48/369,985,318.08 = 149,026,608.48/x - Step 3: Cross multiply
268,107,138.48x = 369,985,318.08 × 149,026,608.48 - Step 4: Simplify right side
268,107,138.48x = 55,137,657,140,856,416 - Step 5: Solve for x
x = 55,137,657,140,856,416/268,107,138.48 - Step 6: Final answer
x = 205,655,311.73
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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.