Finding the Fourth Proportional to 163,833,765.40, 245,750,648.10 and 147,394,523.80
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Solution
The fourth proportional to 163,833,765.40, 245,750,648.10 and 147,394,523.80 is: 221,091,785.70
Step by Step Solution
- Step 1: Write the proportion equation
163,833,765.40 : 245,750,648.10 = 147,394,523.80 : x - Step 2: Convert to fraction form
163,833,765.40/245,750,648.10 = 147,394,523.80/x - Step 3: Cross multiply
163,833,765.40x = 245,750,648.10 × 147,394,523.80 - Step 4: Simplify right side
163,833,765.40x = 36,222,299,750,240,880 - Step 5: Solve for x
x = 36,222,299,750,240,880/163,833,765.40 - Step 6: Final answer
x = 221,091,785.70
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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.