Finding the Fourth Proportional to 11,220,069.78, 15,483,028.84 and 6,510,101.60
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Solution
The fourth proportional to 11,220,069.78, 15,483,028.84 and 6,510,101.60 is: 8,983,552.94
Step by Step Solution
- Step 1: Write the proportion equation
11,220,069.78 : 15,483,028.84 = 6,510,101.60 : x - Step 2: Convert to fraction form
11,220,069.78/15,483,028.84 = 6,510,101.60/x - Step 3: Cross multiply
11,220,069.78x = 15,483,028.84 × 6,510,101.60 - Step 4: Simplify right side
11,220,069.78x = 100,796,090,846,562.47 - Step 5: Solve for x
x = 100,796,090,846,562.47/11,220,069.78 - Step 6: Final answer
x = 8,983,552.94
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1.5x scale
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.