Finding the Fourth Proportional to 199,589,099.70, 299,383,649.55 and 145,841,387.70
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Solution
The fourth proportional to 199,589,099.70, 299,383,649.55 and 145,841,387.70 is: 218,762,081.55
Step by Step Solution
- Step 1: Write the proportion equation
199,589,099.70 : 299,383,649.55 = 145,841,387.70 : x - Step 2: Convert to fraction form
199,589,099.70/299,383,649.55 = 145,841,387.70/x - Step 3: Cross multiply
199,589,099.70x = 299,383,649.55 × 145,841,387.70 - Step 4: Simplify right side
199,589,099.70x = 43,662,526,905,062,480 - Step 5: Solve for x
x = 43,662,526,905,062,480/199,589,099.70 - Step 6: Final answer
x = 218,762,081.55
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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.