Finding the Fourth Proportional to 489,702,890.88, 734,656,512.96 and 259,609,495.68
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Solution
The fourth proportional to 489,702,890.88, 734,656,512.96 and 259,609,495.68 is: 389,468,411.11
Step by Step Solution
- Step 1: Write the proportion equation
489,702,890.88 : 734,656,512.96 = 259,609,495.68 : x - Step 2: Convert to fraction form
489,702,890.88/734,656,512.96 = 259,609,495.68/x - Step 3: Cross multiply
489,702,890.88x = 734,656,512.96 × 259,609,495.68 - Step 4: Simplify right side
489,702,890.88x = 190,723,806,827,572,992 - Step 5: Solve for x
x = 190,723,806,827,572,992/489,702,890.88 - Step 6: Final answer
x = 389,468,411.11
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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.