Finding the Fourth Proportional to 38,987,431.80, 58,481,147.70 and 10,236,473.70
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Solution
The fourth proportional to 38,987,431.80, 58,481,147.70 and 10,236,473.70 is: 15,354,710.55
Step by Step Solution
- Step 1: Write the proportion equation
38,987,431.80 : 58,481,147.70 = 10,236,473.70 : x - Step 2: Convert to fraction form
38,987,431.80/58,481,147.70 = 10,236,473.70/x - Step 3: Cross multiply
38,987,431.80x = 58,481,147.70 × 10,236,473.70 - Step 4: Simplify right side
38,987,431.80x = 598,640,730,376,865.50 - Step 5: Solve for x
x = 598,640,730,376,865.50/38,987,431.80 - Step 6: Final answer
x = 15,354,710.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.