Finding the Fourth Proportional to 84,296,853.60, 126,539,758.80 and 65,212,216.80
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Solution
The fourth proportional to 84,296,853.60, 126,539,758.80 and 65,212,216.80 is: 97,891,413.88
Step by Step Solution
- Step 1: Write the proportion equation
84,296,853.60 : 126,539,758.80 = 65,212,216.80 : x - Step 2: Convert to fraction form
84,296,853.60/126,539,758.80 = 65,212,216.80/x - Step 3: Cross multiply
84,296,853.60x = 126,539,758.80 × 65,212,216.80 - Step 4: Simplify right side
84,296,853.60x = 8,251,938,184,685,307 - Step 5: Solve for x
x = 8,251,938,184,685,307/84,296,853.60 - Step 6: Final answer
x = 97,891,413.88
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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.