Finding the Fourth Proportional to 199,589,491.70, 299,384,237.55 and 145,841,779.70
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Solution
The fourth proportional to 199,589,491.70, 299,384,237.55 and 145,841,779.70 is: 218,762,669.55
Step by Step Solution
- Step 1: Write the proportion equation
199,589,491.70 : 299,384,237.55 = 145,841,779.70 : x - Step 2: Convert to fraction form
199,589,491.70/299,384,237.55 = 145,841,779.70/x - Step 3: Cross multiply
199,589,491.70x = 299,384,237.55 × 145,841,779.70 - Step 4: Simplify right side
199,589,491.70x = 43,662,730,018,419,568 - Step 5: Solve for x
x = 43,662,730,018,419,568/199,589,491.70 - Step 6: Final answer
x = 218,762,669.55
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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.