Finding the Fourth Proportional to 12,903,325.20, 17,806,447.80 and 7,101,982.08
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Solution
The fourth proportional to 12,903,325.20, 17,806,447.80 and 7,101,982.08 is: 9,800,657.68
Step by Step Solution
- Step 1: Write the proportion equation
12,903,325.20 : 17,806,447.80 = 7,101,982.08 : x - Step 2: Convert to fraction form
12,903,325.20/17,806,447.80 = 7,101,982.08/x - Step 3: Cross multiply
12,903,325.20x = 17,806,447.80 × 7,101,982.08 - Step 4: Simplify right side
12,903,325.20x = 126,461,073,184,055.44 - Step 5: Solve for x
x = 126,461,073,184,055.44/12,903,325.20 - Step 6: Final answer
x = 9,800,657.68
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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.