Finding the Fourth Proportional to 19,998,920.20, 27,598,422.58 and 11,178,359.88
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Solution
The fourth proportional to 19,998,920.20, 27,598,422.58 and 11,178,359.88 is: 15,426,087.84
Step by Step Solution
- Step 1: Write the proportion equation
19,998,920.20 : 27,598,422.58 = 11,178,359.88 : x - Step 2: Convert to fraction form
19,998,920.20/27,598,422.58 = 11,178,359.88/x - Step 3: Cross multiply
19,998,920.20x = 27,598,422.58 × 11,178,359.88 - Step 4: Simplify right side
19,998,920.20x = 308,505,099,719,558.06 - Step 5: Solve for x
x = 308,505,099,719,558.06/19,998,920.20 - Step 6: Final answer
x = 15,426,087.84
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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.