Finding the Fourth Proportional to 352,512,830.70, 528,769,246.05 and 214,560,369.90
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Solution
The fourth proportional to 352,512,830.70, 528,769,246.05 and 214,560,369.90 is: 321,840,554.85
Step by Step Solution
- Step 1: Write the proportion equation
352,512,830.70 : 528,769,246.05 = 214,560,369.90 : x - Step 2: Convert to fraction form
352,512,830.70/528,769,246.05 = 214,560,369.90/x - Step 3: Cross multiply
352,512,830.70x = 528,769,246.05 × 214,560,369.90 - Step 4: Simplify right side
352,512,830.70x = 113,452,925,024,232,112 - Step 5: Solve for x
x = 113,452,925,024,232,112/352,512,830.70 - Step 6: Final answer
x = 321,840,554.85
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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.