Finding the Fourth Proportional to 13,681,712.83, 18,880,763.11 and 7,486,760.06
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Solution
The fourth proportional to 13,681,712.83, 18,880,763.11 and 7,486,760.06 is: 10,331,728.56
Step by Step Solution
- Step 1: Write the proportion equation
13,681,712.83 : 18,880,763.11 = 7,486,760.06 : x - Step 2: Convert to fraction form
13,681,712.83/18,880,763.11 = 7,486,760.06/x - Step 3: Cross multiply
13,681,712.83x = 18,880,763.11 × 7,486,760.06 - Step 4: Simplify right side
13,681,712.83x = 141,355,743,154,269.38 - Step 5: Solve for x
x = 141,355,743,154,269.38/13,681,712.83 - Step 6: Final answer
x = 10,331,728.56
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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.