Finding the Fourth Proportional to 121,326,122.20, 181,989,183.30 and 39,444,842.20
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Solution
The fourth proportional to 121,326,122.20, 181,989,183.30 and 39,444,842.20 is: 59,167,263.30
Step by Step Solution
- Step 1: Write the proportion equation
121,326,122.20 : 181,989,183.30 = 39,444,842.20 : x - Step 2: Convert to fraction form
121,326,122.20/181,989,183.30 = 39,444,842.20/x - Step 3: Cross multiply
121,326,122.20x = 181,989,183.30 × 39,444,842.20 - Step 4: Simplify right side
121,326,122.20x = 7,178,534,617,375,376 - Step 5: Solve for x
x = 7,178,534,617,375,376/121,326,122.20 - Step 6: Final answer
x = 59,167,263.30
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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.