Finding the Fourth Proportional to 1,686,159,860.28, 2,327,144,120.94 and 971,558,602.92
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Solution
The fourth proportional to 1,686,159,860.28, 2,327,144,120.94 and 971,558,602.92 is: 1,340,891,183.69
Step by Step Solution
- Step 1: Write the proportion equation
1,686,159,860.28 : 2,327,144,120.94 = 971,558,602.92 : x - Step 2: Convert to fraction form
1,686,159,860.28/2,327,144,120.94 = 971,558,602.92/x - Step 3: Cross multiply
1,686,159,860.28x = 2,327,144,120.94 × 971,558,602.92 - Step 4: Simplify right side
1,686,159,860.28x = 2,260,956,890,933,957,888 - Step 5: Solve for x
x = 2,260,956,890,933,957,888/1,686,159,860.28 - Step 6: Final answer
x = 1,340,891,183.69
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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.