Finding the Fourth Proportional to 11,809,987.80, 17,714,981.70 and 3,831,811.80
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Solution
The fourth proportional to 11,809,987.80, 17,714,981.70 and 3,831,811.80 is: 5,747,717.70
Step by Step Solution
- Step 1: Write the proportion equation
11,809,987.80 : 17,714,981.70 = 3,831,811.80 : x - Step 2: Convert to fraction form
11,809,987.80/17,714,981.70 = 3,831,811.80/x - Step 3: Cross multiply
11,809,987.80x = 17,714,981.70 × 3,831,811.80 - Step 4: Simplify right side
11,809,987.80x = 67,880,475,914,844.05 - Step 5: Solve for x
x = 67,880,475,914,844.05/11,809,987.80 - Step 6: Final answer
x = 5,747,717.70
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1.5x scale
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.