Finding the Fourth Proportional to 68,192,204.10, 102,288,306.15 and 19,671,640.80
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Solution
The fourth proportional to 68,192,204.10, 102,288,306.15 and 19,671,640.80 is: 29,507,461.20
Step by Step Solution
- Step 1: Write the proportion equation
68,192,204.10 : 102,288,306.15 = 19,671,640.80 : x - Step 2: Convert to fraction form
68,192,204.10/102,288,306.15 = 19,671,640.80/x - Step 3: Cross multiply
68,192,204.10x = 102,288,306.15 × 19,671,640.80 - Step 4: Simplify right side
68,192,204.10x = 2,012,178,816,623,231 - Step 5: Solve for x
x = 2,012,178,816,623,231/68,192,204.10 - Step 6: Final answer
x = 29,507,461.20
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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.