Finding the Fourth Proportional to 3,919,495.18, 5,408,720.55 and 2,177,277.49
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Solution
The fourth proportional to 3,919,495.18, 5,408,720.55 and 2,177,277.49 is: 3,004,541.39
Step by Step Solution
- Step 1: Write the proportion equation
3,919,495.18 : 5,408,720.55 = 2,177,277.49 : x - Step 2: Convert to fraction form
3,919,495.18/5,408,720.55 = 2,177,277.49/x - Step 3: Cross multiply
3,919,495.18x = 5,408,720.55 × 2,177,277.49 - Step 4: Simplify right side
3,919,495.18x = 11,776,285,476,171.82 - Step 5: Solve for x
x = 11,776,285,476,171.82/3,919,495.18 - Step 6: Final answer
x = 3,004,541.39
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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.