Finding the Fourth Proportional to 18,683,891.48, 25,783,955.70 and 10,423,884.08
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Solution
The fourth proportional to 18,683,891.48, 25,783,955.70 and 10,423,884.08 is: 14,385,063.50
Step by Step Solution
- Step 1: Write the proportion equation
18,683,891.48 : 25,783,955.70 = 10,423,884.08 : x - Step 2: Convert to fraction form
18,683,891.48/25,783,955.70 = 10,423,884.08/x - Step 3: Cross multiply
18,683,891.48x = 25,783,955.70 × 10,423,884.08 - Step 4: Simplify right side
18,683,891.48x = 268,768,965,340,655.25 - Step 5: Solve for x
x = 268,768,965,340,655.25/18,683,891.48 - Step 6: Final answer
x = 14,385,063.50
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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.