Finding the Fourth Proportional to 230,744,831.70, 318,376,960.56 and 136,612,237.41
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Solution
The fourth proportional to 230,744,831.70, 318,376,960.56 and 136,612,237.41 is: 188,494,748.08
Step by Step Solution
- Step 1: Write the proportion equation
230,744,831.70 : 318,376,960.56 = 136,612,237.41 : x - Step 2: Convert to fraction form
230,744,831.70/318,376,960.56 = 136,612,237.41/x - Step 3: Cross multiply
230,744,831.70x = 318,376,960.56 × 136,612,237.41 - Step 4: Simplify right side
230,744,831.70x = 43,494,188,921,896,928 - Step 5: Solve for x
x = 43,494,188,921,896,928/230,744,831.70 - Step 6: Final answer
x = 188,494,748.08
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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.