Finding the Fourth Proportional to 239,749,504.76, 330,854,305.74 and 129,741,220.76
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Solution
The fourth proportional to 239,749,504.76, 330,854,305.74 and 129,741,220.76 is: 179,042,878.79
Step by Step Solution
- Step 1: Write the proportion equation
239,749,504.76 : 330,854,305.74 = 129,741,220.76 : x - Step 2: Convert to fraction form
239,749,504.76/330,854,305.74 = 129,741,220.76/x - Step 3: Cross multiply
239,749,504.76x = 330,854,305.74 × 129,741,220.76 - Step 4: Simplify right side
239,749,504.76x = 42,925,441,520,409,880 - Step 5: Solve for x
x = 42,925,441,520,409,880/239,749,504.76 - Step 6: Final answer
x = 179,042,878.79
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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.