Finding the Fourth Proportional to 20,931,567.76, 31,397,351.94 and 6,555,760.66
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Solution
The fourth proportional to 20,931,567.76, 31,397,351.94 and 6,555,760.66 is: 9,833,641.08
Step by Step Solution
- Step 1: Write the proportion equation
20,931,567.76 : 31,397,351.94 = 6,555,760.66 : x - Step 2: Convert to fraction form
20,931,567.76/31,397,351.94 = 6,555,760.66/x - Step 3: Cross multiply
20,931,567.76x = 31,397,351.94 × 6,555,760.66 - Step 4: Simplify right side
20,931,567.76x = 205,833,524,597,933.31 - Step 5: Solve for x
x = 205,833,524,597,933.31/20,931,567.76 - Step 6: Final answer
x = 9,833,641.08
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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.