Finding the Fourth Proportional to 21,677,545.44, 29,912,263.23 and 11,885,412.87
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Solution
The fourth proportional to 21,677,545.44, 29,912,263.23 and 11,885,412.87 is: 16,400,362.27
Step by Step Solution
- Step 1: Write the proportion equation
21,677,545.44 : 29,912,263.23 = 11,885,412.87 : x - Step 2: Convert to fraction form
21,677,545.44/29,912,263.23 = 11,885,412.87/x - Step 3: Cross multiply
21,677,545.44x = 29,912,263.23 × 11,885,412.87 - Step 4: Simplify right side
21,677,545.44x = 355,519,598,364,669.75 - Step 5: Solve for x
x = 355,519,598,364,669.75/21,677,545.44 - Step 6: Final answer
x = 16,400,362.27
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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.