Finding the Fourth Proportional to 1,074,587,278.20, 1,609,193,531.70 and 859,596,430.20
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Solution
The fourth proportional to 1,074,587,278.20, 1,609,193,531.70 and 859,596,430.20 is: 1,287,244,920.36
Step by Step Solution
- Step 1: Write the proportion equation
1,074,587,278.20 : 1,609,193,531.70 = 859,596,430.20 : x - Step 2: Convert to fraction form
1,074,587,278.20/1,609,193,531.70 = 859,596,430.20/x - Step 3: Cross multiply
1,074,587,278.20x = 1,609,193,531.70 × 859,596,430.20 - Step 4: Simplify right side
1,074,587,278.20x = 1,383,257,015,350,250,752 - Step 5: Solve for x
x = 1,383,257,015,350,250,752/1,074,587,278.20 - Step 6: Final answer
x = 1,287,244,920.36
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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.