Finding the Fourth Proportional to 3,936,391,315.20, 5,904,586,972.80 and 1,606,553,971.20
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Solution
The fourth proportional to 3,936,391,315.20, 5,904,586,972.80 and 1,606,553,971.20 is: 2,409,830,956.80
Step by Step Solution
- Step 1: Write the proportion equation
3,936,391,315.20 : 5,904,586,972.80 = 1,606,553,971.20 : x - Step 2: Convert to fraction form
3,936,391,315.20/5,904,586,972.80 = 1,606,553,971.20/x - Step 3: Cross multiply
3,936,391,315.20x = 5,904,586,972.80 × 1,606,553,971.20 - Step 4: Simplify right side
3,936,391,315.20x = 9,486,037,649,447,626,752 - Step 5: Solve for x
x = 9,486,037,649,447,626,752/3,936,391,315.20 - Step 6: Final answer
x = 2,409,830,956.80
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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.