Finding the Fourth Proportional to 19,813,819.29, 27,346,059.39 and 12,083,345.70
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Solution
The fourth proportional to 19,813,819.29, 27,346,059.39 and 12,083,345.70 is: 16,676,839.75
Step by Step Solution
- Step 1: Write the proportion equation
19,813,819.29 : 27,346,059.39 = 12,083,345.70 : x - Step 2: Convert to fraction form
19,813,819.29/27,346,059.39 = 12,083,345.70/x - Step 3: Cross multiply
19,813,819.29x = 27,346,059.39 × 12,083,345.70 - Step 4: Simplify right side
19,813,819.29x = 330,431,889,142,101.12 - Step 5: Solve for x
x = 330,431,889,142,101.12/19,813,819.29 - Step 6: Final answer
x = 16,676,839.75
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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.