Finding the Fourth Proportional to 11,388,768.81, 15,716,500.61 and 6,232,130.97
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Solution
The fourth proportional to 11,388,768.81, 15,716,500.61 and 6,232,130.97 is: 8,600,340.55
Step by Step Solution
- Step 1: Write the proportion equation
11,388,768.81 : 15,716,500.61 = 6,232,130.97 : x - Step 2: Convert to fraction form
11,388,768.81/15,716,500.61 = 6,232,130.97/x - Step 3: Cross multiply
11,388,768.81x = 15,716,500.61 × 6,232,130.97 - Step 4: Simplify right side
11,388,768.81x = 97,947,290,160,444.23 - Step 5: Solve for x
x = 97,947,290,160,444.23/11,388,768.81 - Step 6: Final answer
x = 8,600,340.55
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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.