Finding the Fourth Proportional to 137,930,827.20, 206,896,240.80 and 113,271,964.80
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Solution
The fourth proportional to 137,930,827.20, 206,896,240.80 and 113,271,964.80 is: 169,907,947.20
Step by Step Solution
- Step 1: Write the proportion equation
137,930,827.20 : 206,896,240.80 = 113,271,964.80 : x - Step 2: Convert to fraction form
137,930,827.20/206,896,240.80 = 113,271,964.80/x - Step 3: Cross multiply
137,930,827.20x = 206,896,240.80 × 113,271,964.80 - Step 4: Simplify right side
137,930,827.20x = 23,435,543,705,149,924 - Step 5: Solve for x
x = 23,435,543,705,149,924/137,930,827.20 - Step 6: Final answer
x = 169,907,947.20
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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.