Finding the Fourth Proportional to 221,452,181.70, 332,178,272.55 and 135,358,739.70
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Solution
The fourth proportional to 221,452,181.70, 332,178,272.55 and 135,358,739.70 is: 203,038,109.55
Step by Step Solution
- Step 1: Write the proportion equation
221,452,181.70 : 332,178,272.55 = 135,358,739.70 : x - Step 2: Convert to fraction form
221,452,181.70/332,178,272.55 = 135,358,739.70/x - Step 3: Cross multiply
221,452,181.70x = 332,178,272.55 × 135,358,739.70 - Step 4: Simplify right side
221,452,181.70x = 44,963,232,328,091,104 - Step 5: Solve for x
x = 44,963,232,328,091,104/221,452,181.70 - Step 6: Final answer
x = 203,038,109.55
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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.