Finding the Fourth Proportional to 220,065,415.80, 330,098,123.70 and 118,028,743.80
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Solution
The fourth proportional to 220,065,415.80, 330,098,123.70 and 118,028,743.80 is: 177,043,115.70
Step by Step Solution
- Step 1: Write the proportion equation
220,065,415.80 : 330,098,123.70 = 118,028,743.80 : x - Step 2: Convert to fraction form
220,065,415.80/330,098,123.70 = 118,028,743.80/x - Step 3: Cross multiply
220,065,415.80x = 330,098,123.70 × 118,028,743.80 - Step 4: Simplify right side
220,065,415.80x = 38,961,066,871,048,008 - Step 5: Solve for x
x = 38,961,066,871,048,008/220,065,415.80 - Step 6: Final answer
x = 177,043,115.70
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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.