Finding the Fourth Proportional to 131,545,009.66, 197,227,831.28 and 66,723,821.68
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Solution
The fourth proportional to 131,545,009.66, 197,227,831.28 and 66,723,821.68 is: 100,040,242.34
Step by Step Solution
- Step 1: Write the proportion equation
131,545,009.66 : 197,227,831.28 = 66,723,821.68 : x - Step 2: Convert to fraction form
131,545,009.66/197,227,831.28 = 66,723,821.68/x - Step 3: Cross multiply
131,545,009.66x = 197,227,831.28 × 66,723,821.68 - Step 4: Simplify right side
131,545,009.66x = 13,159,794,644,659,846 - Step 5: Solve for x
x = 13,159,794,644,659,846/131,545,009.66 - Step 6: Final answer
x = 100,040,242.34
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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.