Finding the Fourth Proportional to 78,805,879.86, 118,215,118.35 and 27,699,364.02
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Solution
The fourth proportional to 78,805,879.86, 118,215,118.35 and 27,699,364.02 is: 41,551,259.90
Step by Step Solution
- Step 1: Write the proportion equation
78,805,879.86 : 118,215,118.35 = 27,699,364.02 : x - Step 2: Convert to fraction form
78,805,879.86/118,215,118.35 = 27,699,364.02/x - Step 3: Cross multiply
78,805,879.86x = 118,215,118.35 × 27,699,364.02 - Step 4: Simplify right side
78,805,879.86x = 3,274,483,595,844,031.50 - Step 5: Solve for x
x = 3,274,483,595,844,031.50/78,805,879.86 - Step 6: Final answer
x = 41,551,259.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.