Finding the Fourth Proportional to 121,940,811.99, 168,273,814.51 and 66,185,035.30
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Solution
The fourth proportional to 121,940,811.99, 168,273,814.51 and 66,185,035.30 is: 91,332,903.00
Step by Step Solution
- Step 1: Write the proportion equation
121,940,811.99 : 168,273,814.51 = 66,185,035.30 : x - Step 2: Convert to fraction form
121,940,811.99/168,273,814.51 = 66,185,035.30/x - Step 3: Cross multiply
121,940,811.99x = 168,273,814.51 × 66,185,035.30 - Step 4: Simplify right side
121,940,811.99x = 11,137,208,353,410,002 - Step 5: Solve for x
x = 11,137,208,353,410,002/121,940,811.99 - Step 6: Final answer
x = 91,332,903.00
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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.