Finding the Fourth Proportional to 292,413,403.20, 438,620,104.80 and 235,017,775.20
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Solution
The fourth proportional to 292,413,403.20, 438,620,104.80 and 235,017,775.20 is: 352,526,662.80
Step by Step Solution
- Step 1: Write the proportion equation
292,413,403.20 : 438,620,104.80 = 235,017,775.20 : x - Step 2: Convert to fraction form
292,413,403.20/438,620,104.80 = 235,017,775.20/x - Step 3: Cross multiply
292,413,403.20x = 438,620,104.80 × 235,017,775.20 - Step 4: Simplify right side
292,413,403.20x = 103,083,521,188,086,832 - Step 5: Solve for x
x = 103,083,521,188,086,832/292,413,403.20 - Step 6: Final answer
x = 352,526,662.80
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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.