Finding the Fourth Proportional to 10,302,817.48, 14,217,176.91 and 5,718,778
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Solution
The fourth proportional to 10,302,817.48, 14,217,176.91 and 5,718,778 is: 7,891,518.87
Step by Step Solution
- Step 1: Write the proportion equation
10,302,817.48 : 14,217,176.91 = 5,718,778 : x - Step 2: Convert to fraction form
10,302,817.48/14,217,176.91 = 5,718,778/x - Step 3: Cross multiply
10,302,817.48x = 14,217,176.91 × 5,718,778 - Step 4: Simplify right side
10,302,817.48x = 81,304,878,535,015.98 - Step 5: Solve for x
x = 81,304,878,535,015.98/10,302,817.48 - Step 6: Final answer
x = 7,891,518.87
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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.