Finding the Fourth Proportional to 115,183,511.20, 172,775,266.80 and 107,625,239.20
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Solution
The fourth proportional to 115,183,511.20, 172,775,266.80 and 107,625,239.20 is: 161,437,858.80
Step by Step Solution
- Step 1: Write the proportion equation
115,183,511.20 : 172,775,266.80 = 107,625,239.20 : x - Step 2: Convert to fraction form
115,183,511.20/172,775,266.80 = 107,625,239.20/x - Step 3: Cross multiply
115,183,511.20x = 172,775,266.80 × 107,625,239.20 - Step 4: Simplify right side
115,183,511.20x = 18,594,979,417,193,820 - Step 5: Solve for x
x = 18,594,979,417,193,820/115,183,511.20 - Step 6: Final answer
x = 161,437,858.80
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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.