Finding the Fourth Proportional to 115,183,507.70, 172,775,261.55 and 107,625,235.70
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Solution
The fourth proportional to 115,183,507.70, 172,775,261.55 and 107,625,235.70 is: 161,437,853.55
Step by Step Solution
- Step 1: Write the proportion equation
115,183,507.70 : 172,775,261.55 = 107,625,235.70 : x - Step 2: Convert to fraction form
115,183,507.70/172,775,261.55 = 107,625,235.70/x - Step 3: Cross multiply
115,183,507.70x = 172,775,261.55 × 107,625,235.70 - Step 4: Simplify right side
115,183,507.70x = 18,594,978,247,447,900 - Step 5: Solve for x
x = 18,594,978,247,447,900/115,183,507.70 - Step 6: Final answer
x = 161,437,853.55
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1.5x scale
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.