Finding the Fourth Proportional to 21,508,621.40, 32,259,245.70 and 8,038,515.80
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Solution
The fourth proportional to 21,508,621.40, 32,259,245.70 and 8,038,515.80 is: 12,056,395.96
Step by Step Solution
- Step 1: Write the proportion equation
21,508,621.40 : 32,259,245.70 = 8,038,515.80 : x - Step 2: Convert to fraction form
21,508,621.40/32,259,245.70 = 8,038,515.80/x - Step 3: Cross multiply
21,508,621.40x = 32,259,245.70 × 8,038,515.80 - Step 4: Simplify right side
21,508,621.40x = 259,316,456,255,532.06 - Step 5: Solve for x
x = 259,316,456,255,532.06/21,508,621.40 - Step 6: Final answer
x = 12,056,395.96
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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.