Finding the Fourth Proportional to 292,413,419.20, 438,620,128.80 and 235,017,791.20
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Solution
The fourth proportional to 292,413,419.20, 438,620,128.80 and 235,017,791.20 is: 352,526,686.80
Step by Step Solution
- Step 1: Write the proportion equation
292,413,419.20 : 438,620,128.80 = 235,017,791.20 : x - Step 2: Convert to fraction form
292,413,419.20/438,620,128.80 = 235,017,791.20/x - Step 3: Cross multiply
292,413,419.20x = 438,620,128.80 × 235,017,791.20 - Step 4: Simplify right side
292,413,419.20x = 103,083,533,846,435,504 - Step 5: Solve for x
x = 103,083,533,846,435,504/292,413,419.20 - Step 6: Final answer
x = 352,526,686.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.