Finding the Fourth Proportional to 19,431,066.20, 29,146,599.30 and 9,331,251.80
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Solution
The fourth proportional to 19,431,066.20, 29,146,599.30 and 9,331,251.80 is: 13,996,877.70
Step by Step Solution
- Step 1: Write the proportion equation
19,431,066.20 : 29,146,599.30 = 9,331,251.80 : x - Step 2: Convert to fraction form
19,431,066.20/29,146,599.30 = 9,331,251.80/x - Step 3: Cross multiply
19,431,066.20x = 29,146,599.30 × 9,331,251.80 - Step 4: Simplify right side
19,431,066.20x = 271,974,257,182,003.78 - Step 5: Solve for x
x = 271,974,257,182,003.78/19,431,066.20 - Step 6: Final answer
x = 13,996,877.70
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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.