Finding the Fourth Proportional to 36,700,391.70, 55,048,837.95 and 12,436,938.90
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Solution
The fourth proportional to 36,700,391.70, 55,048,837.95 and 12,436,938.90 is: 18,654,815.45
Step by Step Solution
- Step 1: Write the proportion equation
36,700,391.70 : 55,048,837.95 = 12,436,938.90 : x - Step 2: Convert to fraction form
36,700,391.70/55,048,837.95 = 12,436,938.90/x - Step 3: Cross multiply
36,700,391.70x = 55,048,837.95 × 12,436,938.90 - Step 4: Simplify right side
36,700,391.70x = 684,639,034,100,151.38 - Step 5: Solve for x
x = 684,639,034,100,151.38/36,700,391.70 - Step 6: Final answer
x = 18,654,815.45
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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.