Finding the Fourth Proportional to 120,944,873.99, 166,918,095.77 and 68,741,756.87
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Solution
The fourth proportional to 120,944,873.99, 166,918,095.77 and 68,741,756.87 is: 94,871,678.12
Step by Step Solution
- Step 1: Write the proportion equation
120,944,873.99 : 166,918,095.77 = 68,741,756.87 : x - Step 2: Convert to fraction form
120,944,873.99/166,918,095.77 = 68,741,756.87/x - Step 3: Cross multiply
120,944,873.99x = 166,918,095.77 × 68,741,756.87 - Step 4: Simplify right side
120,944,873.99x = 11,474,243,155,446,414 - Step 5: Solve for x
x = 11,474,243,155,446,414/120,944,873.99 - Step 6: Final answer
x = 94,871,678.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.