Finding the Fourth Proportional to 314,930,272.30, 472,395,408.45 and 133,177,450.30
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Solution
The fourth proportional to 314,930,272.30, 472,395,408.45 and 133,177,450.30 is: 199,766,175.45
Step by Step Solution
- Step 1: Write the proportion equation
314,930,272.30 : 472,395,408.45 = 133,177,450.30 : x - Step 2: Convert to fraction form
314,930,272.30/472,395,408.45 = 133,177,450.30/x - Step 3: Cross multiply
314,930,272.30x = 472,395,408.45 × 133,177,450.30 - Step 4: Simplify right side
314,930,272.30x = 62,912,416,030,798,072 - Step 5: Solve for x
x = 62,912,416,030,798,072/314,930,272.30 - Step 6: Final answer
x = 199,766,175.45
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1.5x scale
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.