Finding the Fourth Proportional to 12,787,306.76, 19,087,681.70 and 11,173,037.96
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Solution
The fourth proportional to 12,787,306.76, 19,087,681.70 and 11,173,037.96 is: 16,678,053.96
Step by Step Solution
- Step 1: Write the proportion equation
12,787,306.76 : 19,087,681.70 = 11,173,037.96 : x - Step 2: Convert to fraction form
12,787,306.76/19,087,681.70 = 11,173,037.96/x - Step 3: Cross multiply
12,787,306.76x = 19,087,681.70 × 11,173,037.96 - Step 4: Simplify right side
12,787,306.76x = 213,267,392,202,497.34 - Step 5: Solve for x
x = 213,267,392,202,497.34/12,787,306.76 - Step 6: Final answer
x = 16,678,053.96
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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.