Finding the Fourth Proportional to 7,239,392.64, 9,990,556.94 and 4,259,304.07
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Solution
The fourth proportional to 7,239,392.64, 9,990,556.94 and 4,259,304.07 is: 5,877,954.40
Step by Step Solution
- Step 1: Write the proportion equation
7,239,392.64 : 9,990,556.94 = 4,259,304.07 : x - Step 2: Convert to fraction form
7,239,392.64/9,990,556.94 = 4,259,304.07/x - Step 3: Cross multiply
7,239,392.64x = 9,990,556.94 × 4,259,304.07 - Step 4: Simplify right side
7,239,392.64x = 42,552,819,821,780.62 - Step 5: Solve for x
x = 42,552,819,821,780.62/7,239,392.64 - Step 6: Final answer
x = 5,877,954.40
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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.