Finding the Fourth Proportional to 66,159,811.37, 91,287,160.49 and 38,652,425.21
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Solution
The fourth proportional to 66,159,811.37, 91,287,160.49 and 38,652,425.21 is: 53,332,530.28
Step by Step Solution
- Step 1: Write the proportion equation
66,159,811.37 : 91,287,160.49 = 38,652,425.21 : x - Step 2: Convert to fraction form
66,159,811.37/91,287,160.49 = 38,652,425.21/x - Step 3: Cross multiply
66,159,811.37x = 91,287,160.49 × 38,652,425.21 - Step 4: Simplify right side
66,159,811.37x = 3,528,470,143,016,556 - Step 5: Solve for x
x = 3,528,470,143,016,556/66,159,811.37 - Step 6: Final answer
x = 53,332,530.28
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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.