Finding the Fourth Proportional to 220,170,000.80, 330,255,001.20 and 66,815,811.20
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Solution
The fourth proportional to 220,170,000.80, 330,255,001.20 and 66,815,811.20 is: 100,223,716.80
Step by Step Solution
- Step 1: Write the proportion equation
220,170,000.80 : 330,255,001.20 = 66,815,811.20 : x - Step 2: Convert to fraction form
220,170,000.80/330,255,001.20 = 66,815,811.20/x - Step 3: Cross multiply
220,170,000.80x = 330,255,001.20 × 66,815,811.20 - Step 4: Simplify right side
220,170,000.80x = 22,066,255,808,034,972 - Step 5: Solve for x
x = 22,066,255,808,034,972/220,170,000.80 - Step 6: Final answer
x = 100,223,716.80
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1.5x scale
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.