Finding the Fourth Proportional to 128,673,714.26, 177,571,523.50 and 69,936,361.76
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Solution
The fourth proportional to 128,673,714.26, 177,571,523.50 and 69,936,361.76 is: 96,513,156.38
Step by Step Solution
- Step 1: Write the proportion equation
128,673,714.26 : 177,571,523.50 = 69,936,361.76 : x - Step 2: Convert to fraction form
128,673,714.26/177,571,523.50 = 69,936,361.76/x - Step 3: Cross multiply
128,673,714.26x = 177,571,523.50 × 69,936,361.76 - Step 4: Simplify right side
128,673,714.26x = 12,418,706,306,039,430 - Step 5: Solve for x
x = 12,418,706,306,039,430/128,673,714.26 - Step 6: Final answer
x = 96,513,156.38
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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.