Finding the Fourth Proportional to 310,453,490.34, 465,680,235.92 and 126,177,792.53
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Solution
The fourth proportional to 310,453,490.34, 465,680,235.92 and 126,177,792.53 is: 189,266,688.95
Step by Step Solution
- Step 1: Write the proportion equation
310,453,490.34 : 465,680,235.92 = 126,177,792.53 : x - Step 2: Convert to fraction form
310,453,490.34/465,680,235.92 = 126,177,792.53/x - Step 3: Cross multiply
310,453,490.34x = 465,680,235.92 × 126,177,792.53 - Step 4: Simplify right side
310,453,490.34x = 58,758,504,190,275,928 - Step 5: Solve for x
x = 58,758,504,190,275,928/310,453,490.34 - Step 6: Final answer
x = 189,266,688.95
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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.