Finding the Fourth Proportional to 488,352,174.20, 732,528,261.30 and 422,595,207.80
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Solution
The fourth proportional to 488,352,174.20, 732,528,261.30 and 422,595,207.80 is: 633,892,811.70
Step by Step Solution
- Step 1: Write the proportion equation
488,352,174.20 : 732,528,261.30 = 422,595,207.80 : x - Step 2: Convert to fraction form
488,352,174.20/732,528,261.30 = 422,595,207.80/x - Step 3: Cross multiply
488,352,174.20x = 732,528,261.30 × 422,595,207.80 - Step 4: Simplify right side
488,352,174.20x = 309,562,932,803,446,208 - Step 5: Solve for x
x = 309,562,932,803,446,208/488,352,174.20 - Step 6: Final answer
x = 633,892,811.70
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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.