Finding the Fourth Proportional to 221,454,205.20, 332,181,307.80 and 135,360,763.20
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Solution
The fourth proportional to 221,454,205.20, 332,181,307.80 and 135,360,763.20 is: 203,041,144.80
Step by Step Solution
- Step 1: Write the proportion equation
221,454,205.20 : 332,181,307.80 = 135,360,763.20 : x - Step 2: Convert to fraction form
221,454,205.20/332,181,307.80 = 135,360,763.20/x - Step 3: Cross multiply
221,454,205.20x = 332,181,307.80 × 135,360,763.20 - Step 4: Simplify right side
221,454,205.20x = 44,964,315,344,582,112 - Step 5: Solve for x
x = 44,964,315,344,582,112/221,454,205.20 - Step 6: Final answer
x = 203,041,144.80
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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.