Finding the Fourth Proportional to 1,117,253,714.08, 1,541,857,956.24 and 622,216,421.92
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Solution
The fourth proportional to 1,117,253,714.08, 1,541,857,956.24 and 622,216,421.92 is: 858,685,299.99
Step by Step Solution
- Step 1: Write the proportion equation
1,117,253,714.08 : 1,541,857,956.24 = 622,216,421.92 : x - Step 2: Convert to fraction form
1,117,253,714.08/1,541,857,956.24 = 622,216,421.92/x - Step 3: Cross multiply
1,117,253,714.08x = 1,541,857,956.24 × 622,216,421.92 - Step 4: Simplify right side
1,117,253,714.08x = 959,369,340,640,536,704 - Step 5: Solve for x
x = 959,369,340,640,536,704/1,117,253,714.08 - Step 6: Final answer
x = 858,685,299.99
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1.5x scale
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.