Finding the Fourth Proportional to 352,512,005.20, 528,768,007.80 and 328,624,133.20
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Solution
The fourth proportional to 352,512,005.20, 528,768,007.80 and 328,624,133.20 is: 492,936,199.80
Step by Step Solution
- Step 1: Write the proportion equation
352,512,005.20 : 528,768,007.80 = 328,624,133.20 : x - Step 2: Convert to fraction form
352,512,005.20/528,768,007.80 = 328,624,133.20/x - Step 3: Cross multiply
352,512,005.20x = 528,768,007.80 × 328,624,133.20 - Step 4: Simplify right side
352,512,005.20x = 173,765,928,227,165,824 - Step 5: Solve for x
x = 173,765,928,227,165,824/352,512,005.20 - Step 6: Final answer
x = 492,936,199.80
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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.