Finding the Fourth Proportional to 106,487,664.84, 159,311,221.29 and 80,654,383.44
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Solution
The fourth proportional to 106,487,664.84, 159,311,221.29 and 80,654,383.44 is: 120,663,255.67
Step by Step Solution
- Step 1: Write the proportion equation
106,487,664.84 : 159,311,221.29 = 80,654,383.44 : x - Step 2: Convert to fraction form
106,487,664.84/159,311,221.29 = 80,654,383.44/x - Step 3: Cross multiply
106,487,664.84x = 159,311,221.29 × 80,654,383.44 - Step 4: Simplify right side
106,487,664.84x = 12,849,148,328,218,350 - Step 5: Solve for x
x = 12,849,148,328,218,350/106,487,664.84 - Step 6: Final answer
x = 120,663,255.67
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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.