Finding the Fourth Proportional to 221,452,161.20, 332,178,241.80 and 135,358,719.20
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Solution
The fourth proportional to 221,452,161.20, 332,178,241.80 and 135,358,719.20 is: 203,038,078.80
Step by Step Solution
- Step 1: Write the proportion equation
221,452,161.20 : 332,178,241.80 = 135,358,719.20 : x - Step 2: Convert to fraction form
221,452,161.20/332,178,241.80 = 135,358,719.20/x - Step 3: Cross multiply
221,452,161.20x = 332,178,241.80 × 135,358,719.20 - Step 4: Simplify right side
221,452,161.20x = 44,963,221,356,155,904 - Step 5: Solve for x
x = 44,963,221,356,155,904/221,452,161.20 - Step 6: Final answer
x = 203,038,078.80
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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.