Finding the Fourth Proportional to 1,738,512,780.20, 2,606,873,375.10 and 647,434,226.60
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Solution
The fourth proportional to 1,738,512,780.20, 2,606,873,375.10 and 647,434,226.60 is: 970,817,739.55
Step by Step Solution
- Step 1: Write the proportion equation
1,738,512,780.20 : 2,606,873,375.10 = 647,434,226.60 : x - Step 2: Convert to fraction form
1,738,512,780.20/2,606,873,375.10 = 647,434,226.60/x - Step 3: Cross multiply
1,738,512,780.20x = 2,606,873,375.10 × 647,434,226.60 - Step 4: Simplify right side
1,738,512,780.20x = 1,687,779,047,452,000,256 - Step 5: Solve for x
x = 1,687,779,047,452,000,256/1,738,512,780.20 - Step 6: Final answer
x = 970,817,739.55
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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.