Finding the Fourth Proportional to 4,218,886.82, 5,818,236.96 and 2,768,031.02
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Solution
The fourth proportional to 4,218,886.82, 5,818,236.96 and 2,768,031.02 is: 3,817,371.99
Step by Step Solution
- Step 1: Write the proportion equation
4,218,886.82 : 5,818,236.96 = 2,768,031.02 : x - Step 2: Convert to fraction form
4,218,886.82/5,818,236.96 = 2,768,031.02/x - Step 3: Cross multiply
4,218,886.82x = 5,818,236.96 × 2,768,031.02 - Step 4: Simplify right side
4,218,886.82x = 16,105,060,386,990.50 - Step 5: Solve for x
x = 16,105,060,386,990.50/4,218,886.82 - Step 6: Final answer
x = 3,817,371.99
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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.