Finding the Fourth Proportional to 7,216,387.94, 9,958,536.08 and 3,908,599.88
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Solution
The fourth proportional to 7,216,387.94, 9,958,536.08 and 3,908,599.88 is: 5,393,824.89
Step by Step Solution
- Step 1: Write the proportion equation
7,216,387.94 : 9,958,536.08 = 3,908,599.88 : x - Step 2: Convert to fraction form
7,216,387.94/9,958,536.08 = 3,908,599.88/x - Step 3: Cross multiply
7,216,387.94x = 9,958,536.08 × 3,908,599.88 - Step 4: Simplify right side
7,216,387.94x = 38,923,932,882,824.33 - Step 5: Solve for x
x = 38,923,932,882,824.33/7,216,387.94 - Step 6: Final answer
x = 5,393,824.89
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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.