Finding the Fourth Proportional to 125,988,783.40, 188,983,175.10 and 39,753,623.80
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Solution
The fourth proportional to 125,988,783.40, 188,983,175.10 and 39,753,623.80 is: 59,630,435.70
Step by Step Solution
- Step 1: Write the proportion equation
125,988,783.40 : 188,983,175.10 = 39,753,623.80 : x - Step 2: Convert to fraction form
125,988,783.40/188,983,175.10 = 39,753,623.80/x - Step 3: Cross multiply
125,988,783.40x = 188,983,175.10 × 39,753,623.80 - Step 4: Simplify right side
125,988,783.40x = 7,512,766,047,454,927 - Step 5: Solve for x
x = 7,512,766,047,454,927/125,988,783.40 - Step 6: Final answer
x = 59,630,435.70
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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.