Finding the Fourth Proportional to 19,782,195.49, 27,299,427.33 and 12,047,235.76
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Solution
The fourth proportional to 19,782,195.49, 27,299,427.33 and 12,047,235.76 is: 16,625,183.86
Step by Step Solution
- Step 1: Write the proportion equation
19,782,195.49 : 27,299,427.33 = 12,047,235.76 : x - Step 2: Convert to fraction form
19,782,195.49/27,299,427.33 = 12,047,235.76/x - Step 3: Cross multiply
19,782,195.49x = 27,299,427.33 × 12,047,235.76 - Step 4: Simplify right side
19,782,195.49x = 328,882,637,157,497.31 - Step 5: Solve for x
x = 328,882,637,157,497.31/19,782,195.49 - Step 6: Final answer
x = 16,625,183.86
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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.