Finding the Fourth Proportional to 8,539,778.06, 11,783,729.85 and 5,101,289.18
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Solution
The fourth proportional to 8,539,778.06, 11,783,729.85 and 5,101,289.18 is: 7,039,083.82
Step by Step Solution
- Step 1: Write the proportion equation
8,539,778.06 : 11,783,729.85 = 5,101,289.18 : x - Step 2: Convert to fraction form
8,539,778.06/11,783,729.85 = 5,101,289.18/x - Step 3: Cross multiply
8,539,778.06x = 11,783,729.85 × 5,101,289.18 - Step 4: Simplify right side
8,539,778.06x = 60,112,213,583,848.02 - Step 5: Solve for x
x = 60,112,213,583,848.02/8,539,778.06 - Step 6: Final answer
x = 7,039,083.82
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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.