Finding the Fourth Proportional to 144,512,697.11, 199,427,717.97 and 78,433,197.44
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Solution
The fourth proportional to 144,512,697.11, 199,427,717.97 and 78,433,197.44 is: 108,237,918.82
Step by Step Solution
- Step 1: Write the proportion equation
144,512,697.11 : 199,427,717.97 = 78,433,197.44 : x - Step 2: Convert to fraction form
144,512,697.11/199,427,717.97 = 78,433,197.44/x - Step 3: Cross multiply
144,512,697.11x = 199,427,717.97 × 78,433,197.44 - Step 4: Simplify right side
144,512,697.11x = 15,641,753,577,552,508 - Step 5: Solve for x
x = 15,641,753,577,552,508/144,512,697.11 - Step 6: Final answer
x = 108,237,918.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.