Finding the Fourth Proportional to 19,919,376.65, 27,488,801.84 and 11,548,378.05
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Solution
The fourth proportional to 19,919,376.65, 27,488,801.84 and 11,548,378.05 is: 15,936,797.69
Step by Step Solution
- Step 1: Write the proportion equation
19,919,376.65 : 27,488,801.84 = 11,548,378.05 : x - Step 2: Convert to fraction form
19,919,376.65/27,488,801.84 = 11,548,378.05/x - Step 3: Cross multiply
19,919,376.65x = 27,488,801.84 × 11,548,378.05 - Step 4: Simplify right side
19,919,376.65x = 317,451,075,732,113.75 - Step 5: Solve for x
x = 317,451,075,732,113.75/19,919,376.65 - Step 6: Final answer
x = 15,936,797.69
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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.