Finding the Fourth Proportional to 4,690,137.20, 6,476,428.72 and 2,950,705.92
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Solution
The fourth proportional to 4,690,137.20, 6,476,428.72 and 2,950,705.92 is: 4,074,515.47
Step by Step Solution
- Step 1: Write the proportion equation
4,690,137.20 : 6,476,428.72 = 2,950,705.92 : x - Step 2: Convert to fraction form
4,690,137.20/6,476,428.72 = 2,950,705.92/x - Step 3: Cross multiply
4,690,137.20x = 6,476,428.72 × 2,950,705.92 - Step 4: Simplify right side
4,690,137.20x = 19,110,036,564,562.02 - Step 5: Solve for x
x = 19,110,036,564,562.02/4,690,137.20 - Step 6: Final answer
x = 4,074,515.47
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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.