Finding the Fourth Proportional to 13,526,430.28, 18,664,480.84 and 8,225,420.92
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Solution
The fourth proportional to 13,526,430.28, 18,664,480.84 and 8,225,420.92 is: 11,349,868.96
Step by Step Solution
- Step 1: Write the proportion equation
13,526,430.28 : 18,664,480.84 = 8,225,420.92 : x - Step 2: Convert to fraction form
13,526,430.28/18,664,480.84 = 8,225,420.92/x - Step 3: Cross multiply
13,526,430.28x = 18,664,480.84 × 8,225,420.92 - Step 4: Simplify right side
13,526,430.28x = 153,523,211,162,275.16 - Step 5: Solve for x
x = 153,523,211,162,275.16/13,526,430.28 - Step 6: Final answer
x = 11,349,868.96
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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.