Finding the Fourth Proportional to 12,785,306.24, 19,177,828.12 and 7,390,523.99
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Solution
The fourth proportional to 12,785,306.24, 19,177,828.12 and 7,390,523.99 is: 11,085,710.12
Step by Step Solution
- Step 1: Write the proportion equation
12,785,306.24 : 19,177,828.12 = 7,390,523.99 : x - Step 2: Convert to fraction form
12,785,306.24/19,177,828.12 = 7,390,523.99/x - Step 3: Cross multiply
12,785,306.24x = 19,177,828.12 × 7,390,523.99 - Step 4: Simplify right side
12,785,306.24x = 141,734,198,854,139.31 - Step 5: Solve for x
x = 141,734,198,854,139.31/12,785,306.24 - Step 6: Final answer
x = 11,085,710.12
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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.