Finding the Fourth Proportional to 9,328,439.20, 13,998,879.60 and 4,277,149.60
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Solution
The fourth proportional to 9,328,439.20, 13,998,879.60 and 4,277,149.60 is: 6,418,576.68
Step by Step Solution
- Step 1: Write the proportion equation
9,328,439.20 : 13,998,879.60 = 4,277,149.60 : x - Step 2: Convert to fraction form
9,328,439.20/13,998,879.60 = 4,277,149.60/x - Step 3: Cross multiply
9,328,439.20x = 13,998,879.60 × 4,277,149.60 - Step 4: Simplify right side
9,328,439.20x = 59,875,302,281,588.16 - Step 5: Solve for x
x = 59,875,302,281,588.16/9,328,439.20 - Step 6: Final answer
x = 6,418,576.68
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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.