Finding the Fourth Proportional to 2,129,797,408.80, 3,194,444,170.80 and 576,992,416.80
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Solution
The fourth proportional to 2,129,797,408.80, 3,194,444,170.80 and 576,992,416.80 is: 865,420,370.42
Step by Step Solution
- Step 1: Write the proportion equation
2,129,797,408.80 : 3,194,444,170.80 = 576,992,416.80 : x - Step 2: Convert to fraction form
2,129,797,408.80/3,194,444,170.80 = 576,992,416.80/x - Step 3: Cross multiply
2,129,797,408.80x = 3,194,444,170.80 × 576,992,416.80 - Step 4: Simplify right side
2,129,797,408.80x = 1,843,170,062,442,563,840 - Step 5: Solve for x
x = 1,843,170,062,442,563,840/2,129,797,408.80 - Step 6: Final answer
x = 865,420,370.42
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1.5x scale
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.