Finding the Fourth Proportional to 7,130,170.88, 9,839,018.40 and 4,189,676.48
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Solution
The fourth proportional to 7,130,170.88, 9,839,018.40 and 4,189,676.48 is: 5,781,390.75
Step by Step Solution
- Step 1: Write the proportion equation
7,130,170.88 : 9,839,018.40 = 4,189,676.48 : x - Step 2: Convert to fraction form
7,130,170.88/9,839,018.40 = 4,189,676.48/x - Step 3: Cross multiply
7,130,170.88x = 9,839,018.40 × 4,189,676.48 - Step 4: Simplify right side
7,130,170.88x = 41,222,303,976,767.23 - Step 5: Solve for x
x = 41,222,303,976,767.23/7,130,170.88 - Step 6: Final answer
x = 5,781,390.75
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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.