Finding the Fourth Proportional to 19,782,194.49, 27,299,425.95 and 12,047,234.76
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Solution
The fourth proportional to 19,782,194.49, 27,299,425.95 and 12,047,234.76 is: 16,625,182.48
Step by Step Solution
- Step 1: Write the proportion equation
19,782,194.49 : 27,299,425.95 = 12,047,234.76 : x - Step 2: Convert to fraction form
19,782,194.49/27,299,425.95 = 12,047,234.76/x - Step 3: Cross multiply
19,782,194.49x = 27,299,425.95 × 12,047,234.76 - Step 4: Simplify right side
19,782,194.49x = 328,882,593,232,886 - Step 5: Solve for x
x = 328,882,593,232,886/19,782,194.49 - Step 6: Final answer
x = 16,625,182.48
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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.