Finding the Fourth Proportional to 11,470,372.78, 15,830,626.02 and 6,886,989.40
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Solution
The fourth proportional to 11,470,372.78, 15,830,626.02 and 6,886,989.40 is: 9,504,952.95
Step by Step Solution
- Step 1: Write the proportion equation
11,470,372.78 : 15,830,626.02 = 6,886,989.40 : x - Step 2: Convert to fraction form
11,470,372.78/15,830,626.02 = 6,886,989.40/x - Step 3: Cross multiply
11,470,372.78x = 15,830,626.02 × 6,886,989.40 - Step 4: Simplify right side
11,470,372.78x = 109,025,353,595,104.19 - Step 5: Solve for x
x = 109,025,353,595,104.19/11,470,372.78 - Step 6: Final answer
x = 9,504,952.95
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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.