Finding the Fourth Proportional to 292,413,347.20, 438,620,020.80 and 235,017,719.20
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Solution
The fourth proportional to 292,413,347.20, 438,620,020.80 and 235,017,719.20 is: 352,526,578.80
Step by Step Solution
- Step 1: Write the proportion equation
292,413,347.20 : 438,620,020.80 = 235,017,719.20 : x - Step 2: Convert to fraction form
292,413,347.20/438,620,020.80 = 235,017,719.20/x - Step 3: Cross multiply
292,413,347.20x = 438,620,020.80 × 235,017,719.20 - Step 4: Simplify right side
292,413,347.20x = 103,083,476,883,872,560 - Step 5: Solve for x
x = 103,083,476,883,872,560/292,413,347.20 - Step 6: Final answer
x = 352,526,578.80
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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.