Finding the Fourth Proportional to 20,013,347.40, 27,618,406.26 and 10,845,990.18
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Solution
The fourth proportional to 20,013,347.40, 27,618,406.26 and 10,845,990.18 is: 14,967,459.32
Step by Step Solution
- Step 1: Write the proportion equation
20,013,347.40 : 27,618,406.26 = 10,845,990.18 : x - Step 2: Convert to fraction form
20,013,347.40/27,618,406.26 = 10,845,990.18/x - Step 3: Cross multiply
20,013,347.40x = 27,618,406.26 × 10,845,990.18 - Step 4: Simplify right side
20,013,347.40x = 299,548,963,083,210.56 - Step 5: Solve for x
x = 299,548,963,083,210.56/20,013,347.40 - Step 6: Final answer
x = 14,967,459.32
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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.