Finding the Fourth Proportional to 99,850,628.70, 149,775,943.05 and 65,413,251.90
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Solution
The fourth proportional to 99,850,628.70, 149,775,943.05 and 65,413,251.90 is: 98,119,877.85
Step by Step Solution
- Step 1: Write the proportion equation
99,850,628.70 : 149,775,943.05 = 65,413,251.90 : x - Step 2: Convert to fraction form
99,850,628.70/149,775,943.05 = 65,413,251.90/x - Step 3: Cross multiply
99,850,628.70x = 149,775,943.05 × 65,413,251.90 - Step 4: Simplify right side
99,850,628.70x = 9,797,331,491,289,704 - Step 5: Solve for x
x = 9,797,331,491,289,704/99,850,628.70 - Step 6: Final answer
x = 98,119,877.85
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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.