Finding the Fourth Proportional to 115,924,796.53, 159,976,567.55 and 63,719,181.97
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Solution
The fourth proportional to 115,924,796.53, 159,976,567.55 and 63,719,181.97 is: 87,932,662.59
Step by Step Solution
- Step 1: Write the proportion equation
115,924,796.53 : 159,976,567.55 = 63,719,181.97 : x - Step 2: Convert to fraction form
115,924,796.53/159,976,567.55 = 63,719,181.97/x - Step 3: Cross multiply
115,924,796.53x = 159,976,567.55 × 63,719,181.97 - Step 4: Simplify right side
115,924,796.53x = 10,193,576,018,413,804 - Step 5: Solve for x
x = 10,193,576,018,413,804/115,924,796.53 - Step 6: Final answer
x = 87,932,662.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.