Finding the Fourth Proportional to 13,904,449.47, 19,187,471.70 and 7,709,747.94
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Solution
The fourth proportional to 13,904,449.47, 19,187,471.70 and 7,709,747.94 is: 10,639,081.45
Step by Step Solution
- Step 1: Write the proportion equation
13,904,449.47 : 19,187,471.70 = 7,709,747.94 : x - Step 2: Convert to fraction form
13,904,449.47/19,187,471.70 = 7,709,747.94/x - Step 3: Cross multiply
13,904,449.47x = 19,187,471.70 × 7,709,747.94 - Step 4: Simplify right side
13,904,449.47x = 147,930,570,412,883.31 - Step 5: Solve for x
x = 147,930,570,412,883.31/13,904,449.47 - Step 6: Final answer
x = 10,639,081.45
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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.