Finding the Fourth Proportional to 199,281,831.70, 298,922,747.55 and 91,786,407.70
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Solution
The fourth proportional to 199,281,831.70, 298,922,747.55 and 91,786,407.70 is: 137,679,611.55
Step by Step Solution
- Step 1: Write the proportion equation
199,281,831.70 : 298,922,747.55 = 91,786,407.70 : x - Step 2: Convert to fraction form
199,281,831.70/298,922,747.55 = 91,786,407.70/x - Step 3: Cross multiply
199,281,831.70x = 298,922,747.55 × 91,786,407.70 - Step 4: Simplify right side
199,281,831.70x = 27,437,045,177,428,480 - Step 5: Solve for x
x = 27,437,045,177,428,480/199,281,831.70 - Step 6: Final answer
x = 137,679,611.55
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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.