Finding the Fourth Proportional to 7,912,198.62, 10,919,291.70 and 4,427,506.98
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Solution
The fourth proportional to 7,912,198.62, 10,919,291.70 and 4,427,506.98 is: 6,110,215.70
Step by Step Solution
- Step 1: Write the proportion equation
7,912,198.62 : 10,919,291.70 = 4,427,506.98 : x - Step 2: Convert to fraction form
7,912,198.62/10,919,291.70 = 4,427,506.98/x - Step 3: Cross multiply
7,912,198.62x = 10,919,291.70 × 4,427,506.98 - Step 4: Simplify right side
7,912,198.62x = 48,345,240,218,406.07 - Step 5: Solve for x
x = 48,345,240,218,406.07/7,912,198.62 - Step 6: Final answer
x = 6,110,215.70
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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.