Finding the Fourth Proportional to 19,982,457.26, 27,576,459.68 and 12,246,005.51
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Solution
The fourth proportional to 19,982,457.26, 27,576,459.68 and 12,246,005.51 is: 16,899,897.38
Step by Step Solution
- Step 1: Write the proportion equation
19,982,457.26 : 27,576,459.68 = 12,246,005.51 : x - Step 2: Convert to fraction form
19,982,457.26/27,576,459.68 = 12,246,005.51/x - Step 3: Cross multiply
19,982,457.26x = 27,576,459.68 × 12,246,005.51 - Step 4: Simplify right side
19,982,457.26x = 337,701,476,988,460.56 - Step 5: Solve for x
x = 337,701,476,988,460.56/19,982,457.26 - Step 6: Final answer
x = 16,899,897.38
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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.