Finding the Fourth Proportional to 4,707,639.68, 6,497,021.12 and 2,774,523.20
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Solution
The fourth proportional to 4,707,639.68, 6,497,021.12 and 2,774,523.20 is: 3,829,123.95
Step by Step Solution
- Step 1: Write the proportion equation
4,707,639.68 : 6,497,021.12 = 2,774,523.20 : x - Step 2: Convert to fraction form
4,707,639.68/6,497,021.12 = 2,774,523.20/x - Step 3: Cross multiply
4,707,639.68x = 6,497,021.12 × 2,774,523.20 - Step 4: Simplify right side
4,707,639.68x = 18,026,135,828,329.98 - Step 5: Solve for x
x = 18,026,135,828,329.98/4,707,639.68 - Step 6: Final answer
x = 3,829,123.95
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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.