Finding the Fourth Proportional to 7,698,920.80, 11,548,381.20 and 2,019,719.20
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Solution
The fourth proportional to 7,698,920.80, 11,548,381.20 and 2,019,719.20 is: 3,029,578.80
Step by Step Solution
- Step 1: Write the proportion equation
7,698,920.80 : 11,548,381.20 = 2,019,719.20 : x - Step 2: Convert to fraction form
7,698,920.80/11,548,381.20 = 2,019,719.20/x - Step 3: Cross multiply
7,698,920.80x = 11,548,381.20 × 2,019,719.20 - Step 4: Simplify right side
7,698,920.80x = 23,324,487,238,559.04 - Step 5: Solve for x
x = 23,324,487,238,559.04/7,698,920.80 - Step 6: Final answer
x = 3,029,578.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.