Finding the Fourth Proportional to 21,348,982.68, 29,461,609.98 and 11,559,433.80
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Solution
The fourth proportional to 21,348,982.68, 29,461,609.98 and 11,559,433.80 is: 15,952,026.16
Step by Step Solution
- Step 1: Write the proportion equation
21,348,982.68 : 29,461,609.98 = 11,559,433.80 : x - Step 2: Convert to fraction form
21,348,982.68/29,461,609.98 = 11,559,433.80/x - Step 3: Cross multiply
21,348,982.68x = 29,461,609.98 × 11,559,433.80 - Step 4: Simplify right side
21,348,982.68x = 340,559,530,205,229.38 - Step 5: Solve for x
x = 340,559,530,205,229.38/21,348,982.68 - Step 6: Final answer
x = 15,952,026.16
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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.