Finding the Fourth Proportional to 10,302,820.23, 14,217,180.70 and 5,718,780.75
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Solution
The fourth proportional to 10,302,820.23, 14,217,180.70 and 5,718,780.75 is: 7,891,522.66
Step by Step Solution
- Step 1: Write the proportion equation
10,302,820.23 : 14,217,180.70 = 5,718,780.75 : x - Step 2: Convert to fraction form
10,302,820.23/14,217,180.70 = 5,718,780.75/x - Step 3: Cross multiply
10,302,820.23x = 14,217,180.70 × 5,718,780.75 - Step 4: Simplify right side
10,302,820.23x = 81,304,939,306,431.52 - Step 5: Solve for x
x = 81,304,939,306,431.52/10,302,820.23 - Step 6: Final answer
x = 7,891,522.66
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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.