Finding the Fourth Proportional to 5,275,023,423.45, 7,279,546,648.32 and 2,896,315,432.53
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Solution
The fourth proportional to 5,275,023,423.45, 7,279,546,648.32 and 2,896,315,432.53 is: 3,996,923,161.63
Step by Step Solution
- Step 1: Write the proportion equation
5,275,023,423.45 : 7,279,546,648.32 = 2,896,315,432.53 : x - Step 2: Convert to fraction form
5,275,023,423.45/7,279,546,648.32 = 2,896,315,432.53/x - Step 3: Cross multiply
5,275,023,423.45x = 7,279,546,648.32 × 2,896,315,432.53 - Step 4: Simplify right side
5,275,023,423.45x = 21,083,863,299,351,252,992 - Step 5: Solve for x
x = 21,083,863,299,351,252,992/5,275,023,423.45 - Step 6: Final answer
x = 3,996,923,161.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.