Finding the Fourth Proportional to 489,110,793.40, 734,516,495.70 and 259,528,281.40
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Solution
The fourth proportional to 489,110,793.40, 734,516,495.70 and 259,528,281.40 is: 389,743,604.85
Step by Step Solution
- Step 1: Write the proportion equation
489,110,793.40 : 734,516,495.70 = 259,528,281.40 : x - Step 2: Convert to fraction form
489,110,793.40/734,516,495.70 = 259,528,281.40/x - Step 3: Cross multiply
489,110,793.40x = 734,516,495.70 × 259,528,281.40 - Step 4: Simplify right side
489,110,793.40x = 190,627,803,788,971,520 - Step 5: Solve for x
x = 190,627,803,788,971,520/489,110,793.40 - Step 6: Final answer
x = 389,743,604.85
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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.