Finding the Fourth Proportional to 14,497,658.62, 20,006,230.82 and 7,970,899.74
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Solution
The fourth proportional to 14,497,658.62, 20,006,230.82 and 7,970,899.74 is: 10,999,545.80
Step by Step Solution
- Step 1: Write the proportion equation
14,497,658.62 : 20,006,230.82 = 7,970,899.74 : x - Step 2: Convert to fraction form
14,497,658.62/20,006,230.82 = 7,970,899.74/x - Step 3: Cross multiply
14,497,658.62x = 20,006,230.82 × 7,970,899.74 - Step 4: Simplify right side
14,497,658.62x = 159,467,660,041,518 - Step 5: Solve for x
x = 159,467,660,041,518/14,497,658.62 - Step 6: Final answer
x = 10,999,545.80
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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.