Finding the Fourth Proportional to 19,139,618.88, 26,414,721.84 and 11,701,644.72
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Solution
The fourth proportional to 19,139,618.88, 26,414,721.84 and 11,701,644.72 is: 16,149,521.70
Step by Step Solution
- Step 1: Write the proportion equation
19,139,618.88 : 26,414,721.84 = 11,701,644.72 : x - Step 2: Convert to fraction form
19,139,618.88/26,414,721.84 = 11,701,644.72/x - Step 3: Cross multiply
19,139,618.88x = 26,414,721.84 × 11,701,644.72 - Step 4: Simplify right side
19,139,618.88x = 309,095,690,349,304.69 - Step 5: Solve for x
x = 309,095,690,349,304.69/19,139,618.88 - Step 6: Final answer
x = 16,149,521.70
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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.