Finding the Fourth Proportional to 121,356,122.40, 182,034,183.60 and 40,577,090.40
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Solution
The fourth proportional to 121,356,122.40, 182,034,183.60 and 40,577,090.40 is: 60,865,635.60
Step by Step Solution
- Step 1: Write the proportion equation
121,356,122.40 : 182,034,183.60 = 40,577,090.40 : x - Step 2: Convert to fraction form
121,356,122.40/182,034,183.60 = 40,577,090.40/x - Step 3: Cross multiply
121,356,122.40x = 182,034,183.60 × 40,577,090.40 - Step 4: Simplify right side
121,356,122.40x = 7,386,417,523,827,397 - Step 5: Solve for x
x = 7,386,417,523,827,397/121,356,122.40 - Step 6: Final answer
x = 60,865,635.60
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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.