Finding the Fourth Proportional to 2,086,518,474.90, 3,129,777,712.35 and 1,119,059,658.90
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Solution
The fourth proportional to 2,086,518,474.90, 3,129,777,712.35 and 1,119,059,658.90 is: 1,678,589,488.35
Step by Step Solution
- Step 1: Write the proportion equation
2,086,518,474.90 : 3,129,777,712.35 = 1,119,059,658.90 : x - Step 2: Convert to fraction form
2,086,518,474.90/3,129,777,712.35 = 1,119,059,658.90/x - Step 3: Cross multiply
2,086,518,474.90x = 3,129,777,712.35 × 1,119,059,658.90 - Step 4: Simplify right side
2,086,518,474.90x = 3,502,407,979,215,213,568 - Step 5: Solve for x
x = 3,502,407,979,215,213,568/2,086,518,474.90 - Step 6: Final answer
x = 1,678,589,488.35
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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.