Finding the Fourth Proportional to 19,929,902.18, 27,503,139.74 and 11,230,869.11
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Solution
The fourth proportional to 19,929,902.18, 27,503,139.74 and 11,230,869.11 is: 15,498,528.77
Step by Step Solution
- Step 1: Write the proportion equation
19,929,902.18 : 27,503,139.74 = 11,230,869.11 : x - Step 2: Convert to fraction form
19,929,902.18/27,503,139.74 = 11,230,869.11/x - Step 3: Cross multiply
19,929,902.18x = 27,503,139.74 × 11,230,869.11 - Step 4: Simplify right side
19,929,902.18x = 308,884,162,340,309.38 - Step 5: Solve for x
x = 308,884,162,340,309.38/19,929,902.18 - Step 6: Final answer
x = 15,498,528.77
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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.