Finding the Fourth Proportional to 51,680,790.15, 71,324,516.36 and 38,605,348.65
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Solution
The fourth proportional to 51,680,790.15, 71,324,516.36 and 38,605,348.65 is: 53,279,135.50
Step by Step Solution
- Step 1: Write the proportion equation
51,680,790.15 : 71,324,516.36 = 38,605,348.65 : x - Step 2: Convert to fraction form
51,680,790.15/71,324,516.36 = 38,605,348.65/x - Step 3: Cross multiply
51,680,790.15x = 71,324,516.36 × 38,605,348.65 - Step 4: Simplify right side
51,680,790.15x = 2,753,507,821,370,429 - Step 5: Solve for x
x = 2,753,507,821,370,429/51,680,790.15 - Step 6: Final answer
x = 53,279,135.50
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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.