Finding the Fourth Proportional to 21,853,485.60, 32,789,413.80 and 11,744,296.80
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Solution
The fourth proportional to 21,853,485.60, 32,789,413.80 and 11,744,296.80 is: 17,621,381.53
Step by Step Solution
- Step 1: Write the proportion equation
21,853,485.60 : 32,789,413.80 = 11,744,296.80 : x - Step 2: Convert to fraction form
21,853,485.60/32,789,413.80 = 11,744,296.80/x - Step 3: Cross multiply
21,853,485.60x = 32,789,413.80 × 11,744,296.80 - Step 4: Simplify right side
21,853,485.60x = 385,088,607,565,215.88 - Step 5: Solve for x
x = 385,088,607,565,215.88/21,853,485.60 - Step 6: Final answer
x = 17,621,381.53
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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.