Finding the Fourth Proportional to 20,118,663.66, 27,764,426.46 and 11,299,669.04
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Solution
The fourth proportional to 20,118,663.66, 27,764,426.46 and 11,299,669.04 is: 15,593,919.92
Step by Step Solution
- Step 1: Write the proportion equation
20,118,663.66 : 27,764,426.46 = 11,299,669.04 : x - Step 2: Convert to fraction form
20,118,663.66/27,764,426.46 = 11,299,669.04/x - Step 3: Cross multiply
20,118,663.66x = 27,764,426.46 × 11,299,669.04 - Step 4: Simplify right side
20,118,663.66x = 313,728,830,083,418.81 - Step 5: Solve for x
x = 313,728,830,083,418.81/20,118,663.66 - Step 6: Final answer
x = 15,593,919.92
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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.