Finding the Fourth Proportional to 45,838,519.20, 68,786,060.18 and 21,241,861.19
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Solution
The fourth proportional to 45,838,519.20, 68,786,060.18 and 21,241,861.19 is: 31,875,897.55
Step by Step Solution
- Step 1: Write the proportion equation
45,838,519.20 : 68,786,060.18 = 21,241,861.19 : x - Step 2: Convert to fraction form
45,838,519.20/68,786,060.18 = 21,241,861.19/x - Step 3: Cross multiply
45,838,519.20x = 68,786,060.18 × 21,241,861.19 - Step 4: Simplify right side
45,838,519.20x = 1,461,143,941,700,406.75 - Step 5: Solve for x
x = 1,461,143,941,700,406.75/45,838,519.20 - Step 6: Final answer
x = 31,875,897.55
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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.