Finding the Fourth Proportional to 31,929,034.80, 47,888,886.60 and 9,207,562.80
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Solution
The fourth proportional to 31,929,034.80, 47,888,886.60 and 9,207,562.80 is: 13,809,998.75
Step by Step Solution
- Step 1: Write the proportion equation
31,929,034.80 : 47,888,886.60 = 9,207,562.80 : x - Step 2: Convert to fraction form
31,929,034.80/47,888,886.60 = 9,207,562.80/x - Step 3: Cross multiply
31,929,034.80x = 47,888,886.60 × 9,207,562.80 - Step 4: Simplify right side
31,929,034.80x = 440,939,930,791,578.50 - Step 5: Solve for x
x = 440,939,930,791,578.50/31,929,034.80 - Step 6: Final answer
x = 13,809,998.75
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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.