Finding the Fourth Proportional to 9,139,691.99, 13,627,826.79 and 8,888,586.12
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Solution
The fourth proportional to 9,139,691.99, 13,627,826.79 and 8,888,586.12 is: 13,253,412.94
Step by Step Solution
- Step 1: Write the proportion equation
9,139,691.99 : 13,627,826.79 = 8,888,586.12 : x - Step 2: Convert to fraction form
9,139,691.99/13,627,826.79 = 8,888,586.12/x - Step 3: Cross multiply
9,139,691.99x = 13,627,826.79 × 8,888,586.12 - Step 4: Simplify right side
9,139,691.99x = 121,132,112,051,358.14 - Step 5: Solve for x
x = 121,132,112,051,358.14/9,139,691.99 - Step 6: Final answer
x = 13,253,412.94
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.