Finding the Fourth Proportional to 352,368,086.40, 528,552,129.60 and 214,618,579.20
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Solution
The fourth proportional to 352,368,086.40, 528,552,129.60 and 214,618,579.20 is: 321,927,868.80
Step by Step Solution
- Step 1: Write the proportion equation
352,368,086.40 : 528,552,129.60 = 214,618,579.20 : x - Step 2: Convert to fraction form
352,368,086.40/528,552,129.60 = 214,618,579.20/x - Step 3: Cross multiply
352,368,086.40x = 528,552,129.60 × 214,618,579.20 - Step 4: Simplify right side
352,368,086.40x = 113,437,107,087,886,256 - Step 5: Solve for x
x = 113,437,107,087,886,256/352,368,086.40 - Step 6: Final answer
x = 321,927,868.80
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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.