Finding the Fourth Proportional to 221,478,102.70, 332,217,154.05 and 118,165,972.30
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Solution
The fourth proportional to 221,478,102.70, 332,217,154.05 and 118,165,972.30 is: 177,248,958.45
Step by Step Solution
- Step 1: Write the proportion equation
221,478,102.70 : 332,217,154.05 = 118,165,972.30 : x - Step 2: Convert to fraction form
221,478,102.70/332,217,154.05 = 118,165,972.30/x - Step 3: Cross multiply
221,478,102.70x = 332,217,154.05 × 118,165,972.30 - Step 4: Simplify right side
221,478,102.70x = 39,256,763,023,057,136 - Step 5: Solve for x
x = 39,256,763,023,057,136/221,478,102.70 - Step 6: Final answer
x = 177,248,958.45
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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.