Finding the Fourth Proportional to 20,118,655.58, 27,764,415.32 and 11,299,660.98
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Solution
The fourth proportional to 20,118,655.58, 27,764,415.32 and 11,299,660.98 is: 15,593,908.81
Step by Step Solution
- Step 1: Write the proportion equation
20,118,655.58 : 27,764,415.32 = 11,299,660.98 : x - Step 2: Convert to fraction form
20,118,655.58/27,764,415.32 = 11,299,660.98/x - Step 3: Cross multiply
20,118,655.58x = 27,764,415.32 × 11,299,660.98 - Step 4: Simplify right side
20,118,655.58x = 313,728,480,423,918.25 - Step 5: Solve for x
x = 313,728,480,423,918.25/20,118,655.58 - Step 6: Final answer
x = 15,593,908.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.