Finding the Fourth Proportional to 178,390,831.70, 267,586,247.55 and 133,041,199.70
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Solution
The fourth proportional to 178,390,831.70, 267,586,247.55 and 133,041,199.70 is: 199,561,799.55
Step by Step Solution
- Step 1: Write the proportion equation
178,390,831.70 : 267,586,247.55 = 133,041,199.70 : x - Step 2: Convert to fraction form
178,390,831.70/267,586,247.55 = 133,041,199.70/x - Step 3: Cross multiply
178,390,831.70x = 267,586,247.55 × 133,041,199.70 - Step 4: Simplify right side
178,390,831.70x = 35,599,995,397,273,188 - Step 5: Solve for x
x = 35,599,995,397,273,188/178,390,831.70 - Step 6: Final answer
x = 199,561,799.55
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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.