Finding the Fourth Proportional to 20,286,797,029.07, 27,984,148,515.64 and 12,652,589,006.48
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Solution
The fourth proportional to 20,286,797,029.07, 27,984,148,515.64 and 12,652,589,006.48 is: 17,453,318,498.59
Step by Step Solution
- Step 1: Write the proportion equation
20,286,797,029.07 : 27,984,148,515.64 = 12,652,589,006.48 : x - Step 2: Convert to fraction form
20,286,797,029.07/27,984,148,515.64 = 12,652,589,006.48/x - Step 3: Cross multiply
20,286,797,029.07x = 27,984,148,515.64 × 12,652,589,006.48 - Step 4: Simplify right side
20,286,797,029.07x = 354,071,929,864,690,270,208 - Step 5: Solve for x
x = 354,071,929,864,690,270,208/20,286,797,029.07 - Step 6: Final answer
x = 17,453,318,498.59
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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.