Finding the Fourth Proportional to 68,438,185, 102,662,000.88 and 19,916,440.72
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Solution
The fourth proportional to 68,438,185, 102,662,000.88 and 19,916,440.72 is: 29,876,035.65
Step by Step Solution
- Step 1: Write the proportion equation
68,438,185 : 102,662,000.88 = 19,916,440.72 : x - Step 2: Convert to fraction form
68,438,185/102,662,000.88 = 19,916,440.72/x - Step 3: Cross multiply
68,438,185x = 102,662,000.88 × 19,916,440.72 - Step 4: Simplify right side
68,438,185x = 2,044,661,654,723,107.50 - Step 5: Solve for x
x = 2,044,661,654,723,107.50/68,438,185 - Step 6: Final answer
x = 29,876,035.65
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1.5x scale
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.