Finding the Fourth Proportional to 19,787,912.15, 27,306,658.58 and 10,966,987.58
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Solution
The fourth proportional to 19,787,912.15, 27,306,658.58 and 10,966,987.58 is: 15,134,076.96
Step by Step Solution
- Step 1: Write the proportion equation
19,787,912.15 : 27,306,658.58 = 10,966,987.58 : x - Step 2: Convert to fraction form
19,787,912.15/27,306,658.58 = 10,966,987.58/x - Step 3: Cross multiply
19,787,912.15x = 27,306,658.58 × 10,966,987.58 - Step 4: Simplify right side
19,787,912.15x = 299,471,785,306,792.19 - Step 5: Solve for x
x = 299,471,785,306,792.19/19,787,912.15 - Step 6: Final answer
x = 15,134,076.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.