Finding the Fourth Proportional to 12,912,010.80, 19,318,249.80 and 8,433,034.80
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Solution
The fourth proportional to 12,912,010.80, 19,318,249.80 and 8,433,034.80 is: 12,617,048.99
Step by Step Solution
- Step 1: Write the proportion equation
12,912,010.80 : 19,318,249.80 = 8,433,034.80 : x - Step 2: Convert to fraction form
12,912,010.80/19,318,249.80 = 8,433,034.80/x - Step 3: Cross multiply
12,912,010.80x = 19,318,249.80 × 8,433,034.80 - Step 4: Simplify right side
12,912,010.80x = 162,911,472,838,493.06 - Step 5: Solve for x
x = 162,911,472,838,493.06/12,912,010.80 - Step 6: Final answer
x = 12,617,048.99
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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.