Finding the Fourth Proportional to 491,233,982.29, 677,897,754.18 and 268,214,972.70
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Solution
The fourth proportional to 491,233,982.29, 677,897,754.18 and 268,214,972.70 is: 370,133,855.12
Step by Step Solution
- Step 1: Write the proportion equation
491,233,982.29 : 677,897,754.18 = 268,214,972.70 : x - Step 2: Convert to fraction form
491,233,982.29/677,897,754.18 = 268,214,972.70/x - Step 3: Cross multiply
491,233,982.29x = 677,897,754.18 × 268,214,972.70 - Step 4: Simplify right side
491,233,982.29x = 181,822,327,630,780,000 - Step 5: Solve for x
x = 181,822,327,630,780,000/491,233,982.29 - Step 6: Final answer
x = 370,133,855.12
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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.