Finding the Fourth Proportional to 13,559,149.11, 18,711,760.82 and 7,364,316.79
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Solution
The fourth proportional to 13,559,149.11, 18,711,760.82 and 7,364,316.79 is: 10,162,830.52
Step by Step Solution
- Step 1: Write the proportion equation
13,559,149.11 : 18,711,760.82 = 7,364,316.79 : x - Step 2: Convert to fraction form
13,559,149.11/18,711,760.82 = 7,364,316.79/x - Step 3: Cross multiply
13,559,149.11x = 18,711,760.82 × 7,364,316.79 - Step 4: Simplify right side
13,559,149.11x = 137,799,334,443,685.62 - Step 5: Solve for x
x = 137,799,334,443,685.62/13,559,149.11 - Step 6: Final answer
x = 10,162,830.52
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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.