Finding the Fourth Proportional to 14,946,740.38, 20,626,564.71 and 8,420,448.07
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Solution
The fourth proportional to 14,946,740.38, 20,626,564.71 and 8,420,448.07 is: 11,620,253.82
Step by Step Solution
- Step 1: Write the proportion equation
14,946,740.38 : 20,626,564.71 = 8,420,448.07 : x - Step 2: Convert to fraction form
14,946,740.38/20,626,564.71 = 8,420,448.07/x - Step 3: Cross multiply
14,946,740.38x = 20,626,564.71 × 8,420,448.07 - Step 4: Simplify right side
14,946,740.38x = 173,684,917,003,049.62 - Step 5: Solve for x
x = 173,684,917,003,049.62/14,946,740.38 - Step 6: Final answer
x = 11,620,253.82
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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.