Finding the Fourth Proportional to 146,778,130.20, 220,167,195.30 and 44,542,003.80
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Solution
The fourth proportional to 146,778,130.20, 220,167,195.30 and 44,542,003.80 is: 66,813,005.70
Step by Step Solution
- Step 1: Write the proportion equation
146,778,130.20 : 220,167,195.30 = 44,542,003.80 : x - Step 2: Convert to fraction form
146,778,130.20/220,167,195.30 = 44,542,003.80/x - Step 3: Cross multiply
146,778,130.20x = 220,167,195.30 × 44,542,003.80 - Step 4: Simplify right side
146,778,130.20x = 9,806,688,049,687,942 - Step 5: Solve for x
x = 9,806,688,049,687,942/146,778,130.20 - Step 6: Final answer
x = 66,813,005.70
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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.