Finding the Fourth Proportional to 15,035,329.66, 20,748,828.81 and 8,159,819.62
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Solution
The fourth proportional to 15,035,329.66, 20,748,828.81 and 8,159,819.62 is: 11,260,591.17
Step by Step Solution
- Step 1: Write the proportion equation
15,035,329.66 : 20,748,828.81 = 8,159,819.62 : x - Step 2: Convert to fraction form
15,035,329.66/20,748,828.81 = 8,159,819.62/x - Step 3: Cross multiply
15,035,329.66x = 20,748,828.81 × 8,159,819.62 - Step 4: Simplify right side
15,035,329.66x = 169,306,700,415,859.25 - Step 5: Solve for x
x = 169,306,700,415,859.25/15,035,329.66 - Step 6: Final answer
x = 11,260,591.17
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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.