Finding the Fourth Proportional to 672,446,612.26, 928,017,911.55 and 371,030,450.68
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Solution
The fourth proportional to 672,446,612.26, 928,017,911.55 and 371,030,450.68 is: 512,044,967.86
Step by Step Solution
- Step 1: Write the proportion equation
672,446,612.26 : 928,017,911.55 = 371,030,450.68 : x - Step 2: Convert to fraction form
672,446,612.26/928,017,911.55 = 371,030,450.68/x - Step 3: Cross multiply
672,446,612.26x = 928,017,911.55 × 371,030,450.68 - Step 4: Simplify right side
672,446,612.26x = 344,322,903,961,508,864 - Step 5: Solve for x
x = 344,322,903,961,508,864/672,446,612.26 - Step 6: Final answer
x = 512,044,967.86
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.