Finding the Fourth Proportional to 12,226,137.14, 16,865,329.79 and 9,930,312.02
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Solution
The fourth proportional to 12,226,137.14, 16,865,329.79 and 9,930,312.02 is: 13,698,356.66
Step by Step Solution
- Step 1: Write the proportion equation
12,226,137.14 : 16,865,329.79 = 9,930,312.02 : x - Step 2: Convert to fraction form
12,226,137.14/16,865,329.79 = 9,930,312.02/x - Step 3: Cross multiply
12,226,137.14x = 16,865,329.79 × 9,930,312.02 - Step 4: Simplify right side
12,226,137.14x = 167,477,987,000,922.88 - Step 5: Solve for x
x = 167,477,987,000,922.88/12,226,137.14 - Step 6: Final answer
x = 13,698,356.66
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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.