Finding the Fourth Proportional to 124,476,990.20, 186,715,485.30 and 88,126,425.80
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Solution
The fourth proportional to 124,476,990.20, 186,715,485.30 and 88,126,425.80 is: 132,189,638.70
Step by Step Solution
- Step 1: Write the proportion equation
124,476,990.20 : 186,715,485.30 = 88,126,425.80 : x - Step 2: Convert to fraction form
124,476,990.20/186,715,485.30 = 88,126,425.80/x - Step 3: Cross multiply
124,476,990.20x = 186,715,485.30 × 88,126,425.80 - Step 4: Simplify right side
124,476,990.20x = 16,454,568,361,001,442 - Step 5: Solve for x
x = 16,454,568,361,001,442/124,476,990.20 - Step 6: Final answer
x = 132,189,638.70
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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.