Finding the Fourth Proportional to 146,778,948.20, 220,168,422.30 and 44,542,821.80
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Solution
The fourth proportional to 146,778,948.20, 220,168,422.30 and 44,542,821.80 is: 66,814,232.70
Step by Step Solution
- Step 1: Write the proportion equation
146,778,948.20 : 220,168,422.30 = 44,542,821.80 : x - Step 2: Convert to fraction form
146,778,948.20/220,168,422.30 = 44,542,821.80/x - Step 3: Cross multiply
146,778,948.20x = 220,168,422.30 × 44,542,821.80 - Step 4: Simplify right side
146,778,948.20x = 9,806,922,800,496,046 - Step 5: Solve for x
x = 9,806,922,800,496,046/146,778,948.20 - Step 6: Final answer
x = 66,814,232.70
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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.