Finding the Fourth Proportional to 407,568,138.30, 611,352,207.45 and 134,938,905.30
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Solution
The fourth proportional to 407,568,138.30, 611,352,207.45 and 134,938,905.30 is: 202,408,357.95
Step by Step Solution
- Step 1: Write the proportion equation
407,568,138.30 : 611,352,207.45 = 134,938,905.30 : x - Step 2: Convert to fraction form
407,568,138.30/611,352,207.45 = 134,938,905.30/x - Step 3: Cross multiply
407,568,138.30x = 611,352,207.45 × 134,938,905.30 - Step 4: Simplify right side
407,568,138.30x = 82,495,197,626,041,520 - Step 5: Solve for x
x = 82,495,197,626,041,520/407,568,138.30 - Step 6: Final answer
x = 202,408,357.95
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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.