Finding the Fourth Proportional to 19,987,631.18, 27,582,940.26 and 10,820,273.94
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Solution
The fourth proportional to 19,987,631.18, 27,582,940.26 and 10,820,273.94 is: 14,931,983.03
Step by Step Solution
- Step 1: Write the proportion equation
19,987,631.18 : 27,582,940.26 = 10,820,273.94 : x - Step 2: Convert to fraction form
19,987,631.18/27,582,940.26 = 10,820,273.94/x - Step 3: Cross multiply
19,987,631.18x = 27,582,940.26 × 10,820,273.94 - Step 4: Simplify right side
19,987,631.18x = 298,454,969,683,854.81 - Step 5: Solve for x
x = 298,454,969,683,854.81/19,987,631.18 - Step 6: Final answer
x = 14,931,983.03
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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.