Finding the Fourth Proportional to 19,919,364.65, 27,488,785.21 and 11,548,366.05
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Solution
The fourth proportional to 19,919,364.65, 27,488,785.21 and 11,548,366.05 is: 15,936,781.09
Step by Step Solution
- Step 1: Write the proportion equation
19,919,364.65 : 27,488,785.21 = 11,548,366.05 : x - Step 2: Convert to fraction form
19,919,364.65/27,488,785.21 = 11,548,366.05/x - Step 3: Cross multiply
19,919,364.65x = 27,488,785.21 × 11,548,366.05 - Step 4: Simplify right side
19,919,364.65x = 317,450,553,874,906.12 - Step 5: Solve for x
x = 317,450,553,874,906.12/19,919,364.65 - Step 6: Final answer
x = 15,936,781.09
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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.