Finding the Fourth Proportional to 12,420,898.19, 18,633,369.50 and 3,668,062.11
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Solution
The fourth proportional to 12,420,898.19, 18,633,369.50 and 3,668,062.11 is: 5,502,690.35
Step by Step Solution
- Step 1: Write the proportion equation
12,420,898.19 : 18,633,369.50 = 3,668,062.11 : x - Step 2: Convert to fraction form
12,420,898.19/18,633,369.50 = 3,668,062.11/x - Step 3: Cross multiply
12,420,898.19x = 18,633,369.50 × 3,668,062.11 - Step 4: Simplify right side
12,420,898.19x = 68,348,356,533,072.49 - Step 5: Solve for x
x = 68,348,356,533,072.49/12,420,898.19 - Step 6: Final answer
x = 5,502,690.35
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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.