Finding the Fourth Proportional to 10,992,323.70, 16,488,485.55 and 8,122,542.30
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Solution
The fourth proportional to 10,992,323.70, 16,488,485.55 and 8,122,542.30 is: 12,183,813.45
Step by Step Solution
- Step 1: Write the proportion equation
10,992,323.70 : 16,488,485.55 = 8,122,542.30 : x - Step 2: Convert to fraction form
10,992,323.70/16,488,485.55 = 8,122,542.30/x - Step 3: Cross multiply
10,992,323.70x = 16,488,485.55 × 8,122,542.30 - Step 4: Simplify right side
10,992,323.70x = 133,928,421,342,813.77 - Step 5: Solve for x
x = 133,928,421,342,813.77/10,992,323.70 - Step 6: Final answer
x = 12,183,813.45
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1.5x scale
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.