Finding the Fourth Proportional to 2,170,857,586.68, 2,994,971,910.66 and 1,278,238,785.48
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Solution
The fourth proportional to 2,170,857,586.68, 2,994,971,910.66 and 1,278,238,785.48 is: 1,763,491,663.90
Step by Step Solution
- Step 1: Write the proportion equation
2,170,857,586.68 : 2,994,971,910.66 = 1,278,238,785.48 : x - Step 2: Convert to fraction form
2,170,857,586.68/2,994,971,910.66 = 1,278,238,785.48/x - Step 3: Cross multiply
2,170,857,586.68x = 2,994,971,910.66 × 1,278,238,785.48 - Step 4: Simplify right side
2,170,857,586.68x = 3,828,289,257,628,753,408 - Step 5: Solve for x
x = 3,828,289,257,628,753,408/2,170,857,586.68 - Step 6: Final answer
x = 1,763,491,663.90
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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.