Finding the Fourth Proportional to 13,306,805.14, 18,358,880.61 and 10,855,178.14
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Solution
The fourth proportional to 13,306,805.14, 18,358,880.61 and 10,855,178.14 is: 14,976,466.36
Step by Step Solution
- Step 1: Write the proportion equation
13,306,805.14 : 18,358,880.61 = 10,855,178.14 : x - Step 2: Convert to fraction form
13,306,805.14/18,358,880.61 = 10,855,178.14/x - Step 3: Cross multiply
13,306,805.14x = 18,358,880.61 × 10,855,178.14 - Step 4: Simplify right side
13,306,805.14x = 199,288,919,472,541.88 - Step 5: Solve for x
x = 199,288,919,472,541.88/13,306,805.14 - Step 6: Final answer
x = 14,976,466.36
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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.