Finding the Fourth Proportional to 220,201,160.70, 330,291,243.45 and 74,620,443.90
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Solution
The fourth proportional to 220,201,160.70, 330,291,243.45 and 74,620,443.90 is: 111,927,108.49
Step by Step Solution
- Step 1: Write the proportion equation
220,201,160.70 : 330,291,243.45 = 74,620,443.90 : x - Step 2: Convert to fraction form
220,201,160.70/330,291,243.45 = 74,620,443.90/x - Step 3: Cross multiply
220,201,160.70x = 330,291,243.45 × 74,620,443.90 - Step 4: Simplify right side
220,201,160.70x = 24,646,479,202,521,968 - Step 5: Solve for x
x = 24,646,479,202,521,968/220,201,160.70 - Step 6: Final answer
x = 111,927,108.49
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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.