Finding the Fourth Proportional to 220,110,625.80, 330,165,938.70 and 220,110,625.80
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Solution
The fourth proportional to 220,110,625.80, 330,165,938.70 and 220,110,625.80 is: 330,165,938.70
Step by Step Solution
- Step 1: Write the proportion equation
220,110,625.80 : 330,165,938.70 = 220,110,625.80 : x - Step 2: Convert to fraction form
220,110,625.80/330,165,938.70 = 220,110,625.80/x - Step 3: Cross multiply
220,110,625.80x = 330,165,938.70 × 220,110,625.80 - Step 4: Simplify right side
220,110,625.80x = 72,673,031,385,101,440 - Step 5: Solve for x
x = 72,673,031,385,101,440/220,110,625.80 - Step 6: Final answer
x = 330,165,938.70
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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.